Synology Diskstation Manager

Synology DSM WebAPI CVE-2024-5401: Improper Code Resource Control pre-7.1.1-42962-8, pre-7.2.1-69057
CVE-2024-5401 4.3 - Medium - December 04, 2025

Improper control of dynamically-managed code resources vulnerability in WebAPI component in Synology DiskStation Manager (DSM) before 7.1.1-42962-8 and 7.2.1-69057-2 and 7.2.2-72806 and Synology Unified Controller (DSMUC) before 3.1.4-23079 allows remote authenticated users to obtain privileges without consent via unspecified vectors.

Improper Control of Dynamically-Managed Code Resources

Out-of-bound write in Synology DSM CGI before 7.2.1 (DoS)
CVE-2024-45539 7.5 - High - December 04, 2025

Out-of-bounds write vulnerability in cgi components in Synology DiskStation Manager (DSM) before 7.2.1-69057-2 and 7.2.2-72806 and Synology Unified Controller (DSMUC) before 3.1.4-23079 allows remote attackers to conduct denial-of-service attacks via unspecified vectors.

Memory Corruption

Synology DSM WebAPI CSRF CVE-2024-45538 (before 7.2.1/7.2.2)
CVE-2024-45538 9.6 - Critical - December 04, 2025

Cross-Site Request Forgery (CSRF) vulnerability in WebAPI Framework in Synology DiskStation Manager (DSM) before 7.2.1-69057-2 and 7.2.2-72806 and Synology Unified Controller (DSMUC) before 3.1.4-23079 allows remote attackers to execute arbitrary code via unspecified vectors.

Session Riding

Synology DSM 7.2 RCE via sysplugin Daemon XSS
CVE-2024-10441 - March 19, 2025

Improper encoding or escaping of output vulnerability in the system plugin daemon in Synology BeeStation OS (BSM) before 1.1-65374 and Synology DiskStation Manager (DSM) before 7.2-64570-4, 7.2.1-69057-6 and 7.2.2-72806-1 allows remote attackers to execute arbitrary code via unspecified vectors.

Output Sanitization

Impr Cert Validation in DSM LDAP (v<7.2) – MITM Auth Hijack
CVE-2024-10444 - March 19, 2025

Improper certificate validation vulnerability in the LDAP utilities in Synology DiskStation Manager (DSM) before 7.1.1-42962-8, 7.2.1-69057-7 and 7.2.2-72806-3 allows man-in-the-middle attackers to hijack the authentication of administrators via unspecified vectors.

Improper Certificate Validation

Unvalidated Cert Allows Rmt Write in Synology BeeStation & DSM <1.1/6.2.4
CVE-2024-10445 - March 19, 2025

Improper certificate validation vulnerability in the update functionality in Synology BeeStation OS (BSM) before 1.1-65374 and Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.1.1-42962-7, 7.2-64570-4, 7.2.1-69057-6 and 7.2.2-72806-1 allow remote attackers to write limited files via unspecified vectors.

Improper Certificate Validation

DSM Open Redirect via File Acc (pre-v6.2.4,7.0.1,7.1.1,7.2.1)
CVE-2024-0854 5.4 - Medium - January 24, 2024

URL redirection to untrusted site ('Open Redirect') vulnerability in file access component in Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.0.1-42218-7, 7.1.1-42962-7 and 7.2.1-69057-2 allows remote authenticated users to conduct phishing attacks via unspecified vectors.

Open Redirect

DSM Insufficient Randomness in User Mgmt (pre-7.2-64561)
CVE-2023-2729 7.5 - High - June 13, 2023

Use of insufficiently random values vulnerability in User Management Functionality in Synology DiskStation Manager (DSM) before 7.2-64561 allows remote attackers to obtain user credential via unspecified vectors.

Use of Insufficiently Random Values

Synology DSM 6.2.4,7.0.1,7.1: Uncontrolled path element CVE-2023-0142
CVE-2023-0142 8.1 - High - June 13, 2023

Uncontrolled search path element vulnerability in Backup Management functionality in Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.0.1-42218-7 and 7.1-42661 allows remote authenticated users with administrator privileges to read or write arbitrary files via unspecified vectors.

DLL preloading

SSRF in Synology DSM Package Center <7.1-42661 for authenticated users
CVE-2022-27622 4.3 - Medium - October 25, 2022

Server-Side Request Forgery (SSRF) vulnerability in Package Center functionality in Synology DiskStation Manager (DSM) before 7.1-42661 allows remote authenticated users to access intranet resources via unspecified vectors.

SSRF

Synology DSM <7.1-42661: Missing Auth in iSCSI Management (CVE-2022-27623)
CVE-2022-27623 9.1 - Critical - October 25, 2022

Missing authentication for critical function vulnerability in iSCSI management functionality in Synology DiskStation Manager (DSM) before 7.1-42661 allows remote attackers to read or write arbitrary files via unspecified vectors.

Missing Authentication for Critical Function

Synology DSM <=7.1.1-42962-2 OOB Decryption Buffer Overflow
CVE-2022-27624 9.8 - Critical - October 20, 2022

A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the packet decryption functionality of Out-of-Band (OOB) Management. This allows remote attackers to execute arbitrary commands via unspecified vectors. The following models with Synology DiskStation Manager (DSM) versions before 7.1.1-42962-2 may be affected: DS3622xs+, FS3410, and HD6500.

Buffer Overflow

Synology DSM<=7.1.1-42962-2 OOB RCE Buffer Overrun in Message Processing
CVE-2022-27625 9.8 - Critical - October 20, 2022

A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the message processing functionality of Out-of-Band (OOB) Management. This allows remote attackers to execute arbitrary commands via unspecified vectors. The following models with Synology DiskStation Manager (DSM) versions before 7.1.1-42962-2 may be affected: DS3622xs+, FS3410, and HD6500.

Buffer Overflow

Race Condition in Synology DSM OOB Mgmt (v<7.1.1) Remote Exec
CVE-2022-27626 8.1 - High - October 20, 2022

A vulnerability regarding concurrent execution using shared resource with improper synchronization ('Race Condition') is found in the session processing functionality of Out-of-Band (OOB) Management. This allows remote attackers to execute arbitrary commands via unspecified vectors. The following models with Synology DiskStation Manager (DSM) versions before 7.1.1-42962-2 may be affected: DS3622xs+, FS3410, and HD6500.

Race Condition

Out-of-Bounds Read in Synology DSM OOB Management - before 7.1.1-42962-2
CVE-2022-3576 7.5 - High - October 20, 2022

A vulnerability regarding out-of-bounds read is found in the session processing functionality of Out-of-Band (OOB) Management. This allows remote attackers to obtain sensitive information via unspecified vectors. The following models with Synology DiskStation Manager (DSM) versions before 7.1.1-42962-2 may be affected: DS3622xs+, FS3410, and HD6500.

Out-of-bounds Read

Synology DSM webapi: OS Command Inject before 7.0.1-42218-3
CVE-2022-27616 7.2 - High - August 03, 2022

Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 7.0.1-42218-3 allows remote authenticated users to execute arbitrary commands via unspecified vectors.

Shell injection

Synology DSM <6.2.4-25553 Task Mgmt OS Command Injection
CVE-2022-22684 8.8 - High - July 28, 2022

Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in task management component in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows remote authenticated users to execute arbitrary commands via unspecified vectors.

Shell injection

Path Traversal in Synology DSM WebAPI <6.2.3-25423 Allows Remote Deletion
CVE-2022-27610 8.1 - High - July 27, 2022

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25423 allows remote authenticated users to delete arbitrary files via unspecified vectors.

Directory traversal

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in Authentication functionality in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2022-22687 9.8 - Critical - March 25, 2022

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in Authentication functionality in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.

Classic Buffer Overflow

Improper neutralization of special elements used in a command ('Command Injection') vulnerability in File service functionality in Synology DiskStation Manager (DSM) before 6.2.4-25556-2
CVE-2022-22688 8.8 - High - March 25, 2022

Improper neutralization of special elements used in a command ('Command Injection') vulnerability in File service functionality in Synology DiskStation Manager (DSM) before 6.2.4-25556-2 allows remote authenticated users to execute arbitrary commands via unspecified vectors.

Command Injection

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "
CVE-2021-44142 8.8 - High - February 21, 2022

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

Out-of-bounds Read

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Log Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2021-43925 9.8 - Critical - February 07, 2022

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Log Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote attackers to inject SQL commands via unspecified vectors.

SQL Injection

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Log Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2021-43926 9.8 - Critical - February 07, 2022

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Log Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote attackers to inject SQL commands via unspecified vectors.

SQL Injection

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Security Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2021-43927 9.8 - Critical - February 07, 2022

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in Security Management functionality in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote attackers to inject SQL commands via unspecified vectors.

SQL Injection

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in work flow management in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2021-43929 5.4 - Medium - February 07, 2022

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in work flow management in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

XSS

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in support service management in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2022-22679 4.9 - Medium - February 07, 2022

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in support service management in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote authenticated users to write arbitrary files via unspecified vectors.

Directory traversal

Exposure of sensitive information to an unauthorized actor vulnerability in Web Server in Synology DiskStation Manager (DSM) before 7.0.1-42218-2
CVE-2022-22680 7.5 - High - February 07, 2022

Exposure of sensitive information to an unauthorized actor vulnerability in Web Server in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote attackers to obtain sensitive information via unspecified vectors.

Exposure of sensitive information to an unauthorized actor vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-29086 7.5 - High - June 23, 2021

Exposure of sensitive information to an unauthorized actor vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to obtain sensitive information via unspecified vectors.

Information Disclosure

Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-27649 9.8 - Critical - June 23, 2021

Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.

Dangling pointer

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in Security Advisor report management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-29084 7.5 - High - June 23, 2021

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in Security Advisor report management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to read arbitrary files via unspecified vectors.

Injection

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in file sharing management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-29085 7.5 - High - June 23, 2021

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in file sharing management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to read arbitrary files via unspecified vectors.

Injection

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-29087 7.5 - High - June 23, 2021

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to write arbitrary files via unspecified vectors.

Directory traversal

Improper limitation of a pathname to a restricted directory ('Path Traversal') in cgi component in Synology DiskStation Manager (DSM) before 6.2.4-25553
CVE-2021-29088 7.8 - High - June 01, 2021

Improper limitation of a pathname to a restricted directory ('Path Traversal') in cgi component in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.

Directory traversal

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in PDF Viewer component in Synology DiskStation Manager (DSM) before 6.2.4-25553
CVE-2021-33182 4.3 - Medium - June 01, 2021

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in PDF Viewer component in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows remote authenticated users to read limited files via unspecified vectors.

Directory traversal

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager
CVE-2021-31439 8.8 - High - May 21, 2021

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. Authentication is not required to exploit this vulnerablity. The specific flaw exists within the processing of DSI structures in Netatalk. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12326.

Memory Corruption

Improper neutralization of special elements used in an OS command in SYNO.Core.Network.PPPoE in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-29083 7.2 - High - April 01, 2021

Improper neutralization of special elements used in an OS command in SYNO.Core.Network.PPPoE in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote authenticated users to execute arbitrary code via realname parameter.

Shell injection

Race Condition within a Thread vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26569 8.1 - High - March 12, 2021

Race Condition within a Thread vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Race Condition

Use After Free vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-27646 9.8 - Critical - March 12, 2021

Use After Free vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Dangling pointer

Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-27647 9.8 - Critical - March 12, 2021

Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Out-of-bounds Read

Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26564 8.7 - High - February 26, 2021

Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via an HTTP session.

Cleartext Transmission of Sensitive Information

Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26565 5.9 - Medium - February 26, 2021

Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to obtain sensitive information via an HTTP session.

Cleartext Transmission of Sensitive Information

Insertion of sensitive information into sent data vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26566 9 - Critical - February 26, 2021

Insertion of sensitive information into sent data vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary commands via inbound QuickConnect traffic.

Information Disclosure

Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1
CVE-2021-26567 7.8 - High - February 26, 2021

Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.

Memory Corruption

Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26560 7.4 - High - February 26, 2021

Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via an HTTP session.

Cleartext Transmission of Sensitive Information

Out-of-bounds write vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26562 8.1 - High - February 26, 2021

Out-of-bounds write vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via syno_finder_site HTTP header.

Memory Corruption

Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553
CVE-2021-26563 6.7 - Medium - February 26, 2021

Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.

AuthZ

Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3
CVE-2021-26561 8.1 - High - February 26, 2021

Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via syno_finder_site HTTP header.

Buffer Overflow

Sudo before 1.9.5p2 contains an off-by-one error
CVE-2021-3156 7.8 - High - January 26, 2021

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

off-by-five

Algorithm downgrade vulnerability in QuickConnect in Synology DiskStation Manager (DSM) before 6.2.3-25426-2
CVE-2020-27652 8.3 - High - October 29, 2020

Algorithm downgrade vulnerability in QuickConnect in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via unspecified vectors.

Use of a Broken or Risky Cryptographic Algorithm

Improper certificate validation vulnerability in OpenVPN client in Synology DiskStation Manager (DSM) before 6.2.3-25426-2
CVE-2020-27648 9 - Critical - October 29, 2020

Improper certificate validation vulnerability in OpenVPN client in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Improper Certificate Validation