Sangoma

Known Exploited Sangoma Vulnerabilities

The following Sangoma vulnerabilities have been marked by CISA as Known to be Exploited by threat actors.

The vulnerability CVE-2025-64328: Sangoma FreePBX OS Command Injection Vulnerability is in the top 1% of the currently known exploitable vulnerabilities. 2 known exploited Sangoma vulnerabilities are in the top 5% (95th percentile or greater) of the EPSS exploit probability rankings.

By the Year

In 2026 there have been 0 vulnerabilities in Sangoma. Last year, in 2025 Sangoma had 1 security vulnerability published. Right now, Sangoma is on track to have less security vulnerabilities in 2026 than it did last year.

Recent Sangoma Security Vulnerabilities

CVE	Date	Vulnerability	Products
CVE-2025-32105	Jun 03, 2025	IMG2020 HTTP Server <=2.3.9.6 Buffer Overflow RCE A buffer overflow in the the Sangoma IMG2020 HTTP server through 2.3.9.6 allows an unauthenticated user to achieve remote code execution.	Img2020 Firmware
CVE-2024-53564	Dec 02, 2024	FreePBX Authenticated Arbitrary File Upload Vulnerability in /module_admin/upload.php A vulnerability was discovered in FreePBX 17.0.19.17. It does not verify the type of uploaded (valid FreePBX module) files, allowing high-privilege administrators to insert unwanted files. NOTE: the Supplier's position is that there is no risk beyond what high-privilege administrators are intentionally allowed to do.	Freepbx
CVE-2024-53566	Dec 02, 2024	Sangoma Asterisk: Path Traversal Vulnerability in action_listcategories() Function An issue in the action_listcategories() function of Sangoma Asterisk v22/22.0.0/22.0.0-rc1/22.0.0-rc2/22.0.0-pre1 allows attackers to execute a path traversal.	Asterisk
CVE-2023-26566	May 14, 2024	FreePBX Hardcoded ARI Credentials Remote Reconfiguration Sangoma FreePBX 1805 through 2203 on Linux contains hardcoded credentials for the Asterisk REST Interface (ARI), which allows remote attackers to reconfigure Asterisk and make external and internal calls via HTTP and WebSocket requests sent to the API.	Freepbx
CVE-2023-49786	Dec 14, 2023	Asterisk DTLSSRTP DoS via Handshake Race (pre 18.20.1/20.5.1/21.0.1) Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.	Certified Asterisk
CVE-2023-37457	Dec 14, 2023	Asterisk PJSIP_HEADER Buffer Overflow in update() 18.20.0 & prior Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.	Certified Asterisk
CVE-2023-49294	Dec 14, 2023	Asterisk <18.20.1/20.5.1/21.0.1: Arbitrary File Read (live_dangerously Disabled) Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.	Certified Asterisk
CVE-2023-43336	Nov 02, 2023	FreePBX Access Bypass via Extension Param before 15.0.18/16.0.40 Sangoma Technologies FreePBX before cdr 15.0.18, 16.0.40, 15.0.16, and 16.0.17 was discovered to contain an access control issue via a modified parameter value, e.g., changing extension=self to extension=101.	Freepbx
CVE-2023-26567	Apr 26, 2023	CVE-2023-26567: AMPDB Credentials Exposed via Global Vars in FreePBX Sangoma FreePBX 1805 through 2302 (when obtained as a ,.ISO file) places AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in the list of global variables. This exposes cleartext authentication credentials for the Asterisk Database (MariaDB/MySQL) and Asterisk Manager Interface. For example, an attacker can make a /ari/asterisk/variable?variable=AMPDBPASS API call.	Freepbx Linux 7 Freepbx
CVE-2019-25090	Dec 27, 2022	FreePBX arimanager XSS via dataurl in Views Handler before 13.0.5.4 A vulnerability was found in FreePBX arimanager up to 13.0.5.3 and classified as problematic. Affected by this issue is some unknown functionality of the component Views Handler. The manipulation of the argument dataurl leads to cross site scripting. The attack may be launched remotely. Upgrading to version 13.0.5.4 is able to address this issue. The name of the patch is 199dea7cc7020d3c469a86a39fbd80f5edd3c5ab. It is recommended to upgrade the affected component. VDB-216878 is the identifier assigned to this vulnerability.	Freepbx
CVE-2021-4282	Dec 27, 2022	XSS in FreePBX 14.0.6.25 page.voicemail.php A vulnerability was found in FreePBX voicemail. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file page.voicemail.php. The manipulation leads to cross site scripting. The attack can be launched remotely. Upgrading to version 14.0.6.25 is able to address this issue. The name of the patch is 12e1469ef9208eda9d8955206e78345949236ee6. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216871.	Voicemail
CVE-2021-4283	Dec 27, 2022	FreeBPX Voicemail XSS via Settings Handler (pre14.0.6.25) A vulnerability was found in FreeBPX voicemail. It has been rated as problematic. Affected by this issue is some unknown functionality of the file views/ssettings.php of the component Settings Handler. The manipulation of the argument key leads to cross site scripting. The attack may be launched remotely. Upgrading to version 14.0.6.25 is able to address this issue. The name of the patch is ffce4882016076acd16fe0f676246905aa3cb2f3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216872.	Voicemail
CVE-2020-36630	Dec 25, 2022	FreePBX CDR 14.0 Critical SQLi via ajaxHandler (before 14.0.5.21) A vulnerability was found in FreePBX cdr 14.0. It has been classified as critical. This affects the function ajaxHandler of the file ucp/Cdr.class.php. The manipulation of the argument limit/offset leads to sql injection. Upgrading to version 14.0.5.21 is able to address this issue. The name of the patch is f1a9eea2dfff30fb99d825bac194a676a82b9ec8. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216771.	Freepbx
CVE-2022-42705	Dec 05, 2022	Sangoma Asterisk 16-19: UAF in res_pjsip_pubsub.c A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.	Certified Asterisk Asterisk
CVE-2022-37325	Dec 05, 2022	Sangoma Asterisk <=19.6.0 Crash via Malformed Caller/Called IE in ooq931.c In Sangoma Asterisk through 16.28.0, 17.x and 18.x through 18.14.0, and 19.x through 19.6.0, an incoming Setup message to addons/ooh323c/src/ooq931.c with a malformed Calling or Called Party IE can cause a crash.	Asterisk
CVE-2022-42706	Dec 05, 2022	Sangoma Asterisk Dir Traversal via GetConfig (up to 19.6) An issue was discovered in Sangoma Asterisk through 16.28, 17 and 18 through 18.14, 19 through 19.6, and certified through 18.9-cert1. GetConfig, via Asterisk Manager Interface, allows a connected application to access files outside of the asterisk configuration directory, aka Directory Traversal.	Asterisk Certified Asterisk
CVE-2021-46837	Aug 30, 2022	Asterisk T.38 Res_pjsip_t38 Crash via Zero_Port m=image before 18.2.2 res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation.	Asterisk
CVE-2022-23608	Feb 22, 2022	PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue.	Asterisk
CVE-2021-45310	Feb 14, 2022	Sangoma Technologies Corporation Switchvox Version 102409 is affected by an information disclosure vulnerability due to an improper access restriction Sangoma Technologies Corporation Switchvox Version 102409 is affected by an information disclosure vulnerability due to an improper access restriction. Users information such as first name, last name, acount id, server uuid, email address, profile image, number, timestamps, etc can be extracted by sending an unauthenticated HTTP GET request to the https://Switchvox-IP/main?cmd=invalid_browser.	Switchvox
CVE-2022-21723	Jan 27, 2022	PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.	Asterisk
CVE-2021-37706	Dec 22, 2021	PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victims network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victims machine. Users are advised to upgrade as soon as possible. There are no known workarounds.	Asterisk
CVE-2020-28327	Nov 06, 2020	A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1 A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This caused a gap between the creation of the dialog object, and its next use by the thread that created it. Depending on some off-nominal circumstances and timing, it was possible for another thread to free said dialog in this gap. Asterisk could then crash when the dialog object, or any of its dependent objects, were dereferenced or accessed next by the initial-creation thread. Note, however, that this crash can only occur when using a connection-oriented protocol (e.g., TCP or TLS, but not UDP) for SIP transport. Also, the remote client must be authenticated, or Asterisk must be configured for anonymous calling.	Asterisk
CVE-2020-28242	Nov 06, 2020	An issue was discovered in Asterisk Open Source 13.x before 13.37.1 An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.	Asterisk
CVE-2019-19538	Mar 16, 2020	In Sangoma FreePBX 13 through 15 and sysadmin (aka System Admin) 13.0.92 through 15.0.13.6 modules have a Remote Command Execution vulnerability In Sangoma FreePBX 13 through 15 and sysadmin (aka System Admin) 13.0.92 through 15.0.13.6 modules have a Remote Command Execution vulnerability that results in Privilege Escalation.	Freepbx
CVE-2019-19852	Mar 16, 2020	An XSS Injection vulnerability exists in Sangoma FreePBX and PBXact 13, 14, and 15 within the Call Event Logging report screen in the cel module at the admin/config.php?display=cel URI An XSS Injection vulnerability exists in Sangoma FreePBX and PBXact 13, 14, and 15 within the Call Event Logging report screen in the cel module at the admin/config.php?display=cel URI via date fields. This affects cel through 13.0.26.9, 14.x through 14.0.2.14, and 15.x through 15.0.15.4.	Freepbx
CVE-2019-19615	Mar 16, 2020	Multiple XSS vulnerabilities exist in the Backup & Restore module \ v14.0.10.2 through v14.0.10.7 for FreePBX Multiple XSS vulnerabilities exist in the Backup & Restore module \ v14.0.10.2 through v14.0.10.7 for FreePBX, as shown at /admin/config.php?display=backup on the FreePBX Administrator web site. An attacker can modify the id parameter of the backup configuration screen and embed malicious XSS code via a link. When another user (such as an admin) clicks the link, the XSS payload will render and execute in the context of the victim user's account.	Freepbx
CVE-2019-19851	Mar 16, 2020	An XSS Injection vulnerability exists in Sangoma FreePBX and PBXact 13 An XSS Injection vulnerability exists in Sangoma FreePBX and PBXact 13, 14, and 15 within the Debug/Test page of the Superfecta module at the admin/config.php?display=superfecta URI. This affects Superfecta through 13.0.4.7, 14.x through 14.0.24, and 15.x through 15.0.2.20.	Freepbx
CVE-2019-19552	Dec 06, 2019	In userman 13.0.76.43 through 15.0.20 in Sangoma FreePBX, XSS exists in the user management screen of the Administrator web site, i.e In userman 13.0.76.43 through 15.0.20 in Sangoma FreePBX, XSS exists in the user management screen of the Administrator web site, i.e., the/admin/config.php?display=userman URI. An attacker with sufficient privileges can edit the Display Name of a user and embed malicious XSS code. When another user (such as an admin) visits the main User Management screen, the XSS payload will render and execute in the context of the victim user's account.	Freepbx
CVE-2019-19551	Dec 06, 2019	In userman 13.0.76.43 through 15.0.20 in Sangoma FreePBX, XSS exists in the User Management screen of the Administrator web site In userman 13.0.76.43 through 15.0.20 in Sangoma FreePBX, XSS exists in the User Management screen of the Administrator web site. An attacker with access to the User Control Panel application can submit malicious values in some of the time/date formatting and time-zone fields. These fields are not being properly sanitized. If this is done and a user (such as an admin) visits the User Management screen and views that user's profile, the XSS payload will render and execute in the context of the victim user's account.	Freepbx
CVE-2019-19006	Nov 21, 2019	Sangoma FreePBX 115.0.16.26 and below Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.	Freepbx
CVE-2009-3723	Oct 29, 2019	asterisk allows calls on prohibited networks asterisk allows calls on prohibited networks	Asterisk
CVE-2019-16967	Oct 21, 2019	An issue was discovered in Manager 13.x before 13.0.2.6 and 15.x before 15.0.6 before FreePBX 14.0.10.3 An issue was discovered in Manager 13.x before 13.0.2.6 and 15.x before 15.0.6 before FreePBX 14.0.10.3. In the Manager module form (html\admin\modules\manager\views\form.php), an unsanitized managerdisplay variable coming from the URL is reflected in HTML, leading to XSS. It can be requested via GET request to /config.php?type=tool&display=manager.	Freepbx
CVE-2019-16966	Oct 21, 2019	An issue was discovered in Contactmanager 13.x before 13.0.45.3, 14.x before 14.0.5.12, and 15.x before 15.0.8.21 for FreePBX 14.0.10.3 An issue was discovered in Contactmanager 13.x before 13.0.45.3, 14.x before 14.0.5.12, and 15.x before 15.0.8.21 for FreePBX 14.0.10.3. In the Contactmanager class (html\admin\modules\contactmanager\Contactmanager.class.php), an unsanitized group variable coming from the URL is reflected in HTML on 2 occasions, leading to XSS. It can be requested via a GET request to /admin/ajax.php?module=contactmanager.	Freepbx
CVE-2018-15891	Jun 20, 2019	An issue was discovered in FreePBX core before 3.0.122.43, 14.0.18.34, and 5.0.1beta4 An issue was discovered in FreePBX core before 3.0.122.43, 14.0.18.34, and 5.0.1beta4. By crafting a request for adding Asterisk modules, an attacker is able to store JavaScript commands in a module name.	Freepbx
CVE-2018-12228	Jun 12, 2018	An issue was discovered in Asterisk Open Source 15.x before 15.4.1 An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.	Asterisk
CVE-2018-6393	Jan 29, 2018	FreePBX 10.13.66-32bit and 14.0.1.24 (SNG7-PBX-64bit-1712-2) allow post-authentication SQL injection via the order parameter FreePBX 10.13.66-32bit and 14.0.1.24 (SNG7-PBX-64bit-1712-2) allow post-authentication SQL injection via the order parameter. NOTE: the vendor disputes this issue because it is intentional that a user can "directly modify SQL tables ... [or] run shell scripts ... once ... logged in to the administration interface; there is no need to try to find input validation errors.	Freepbx
CVE-2017-9358	Jun 02, 2017	A memory exhaustion vulnerability exists in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1 and Certified Asterisk 13.13 before 13.13-cert4, which can be triggered by sending specially crafted SCCP packets causing an infinite loop and leading to memory exhaustion (by message logging in A memory exhaustion vulnerability exists in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1 and Certified Asterisk 13.13 before 13.13-cert4, which can be triggered by sending specially crafted SCCP packets causing an infinite loop and leading to memory exhaustion (by message logging in that loop).	Asterisk
CVE-2012-2186	Aug 31, 2012	Incomplete blacklist vulnerability in main/manager.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before 10.7.1, Certified Asterisk 1.8.11 before 1.8.11-cert6, Asterisk Digiumphones 10.x.x-digiumphones before 10.7.1-digiumphones, and Asterisk Business Edition C.3.x before C.3.7.6 Incomplete blacklist vulnerability in main/manager.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before 10.7.1, Certified Asterisk 1.8.11 before 1.8.11-cert6, Asterisk Digiumphones 10.x.x-digiumphones before 10.7.1-digiumphones, and Asterisk Business Edition C.3.x before C.3.7.6 allows remote authenticated users to execute arbitrary commands by leveraging originate privileges and providing an ExternalIVR value in an AMI Originate action.	Asterisk
CVE-2012-2948	Jun 02, 2012	chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.	Asterisk
CVE-2009-2346	Sep 08, 2009	The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 allows remote attackers to cause a denial of service (call-number exhaustion) by initiating many IAX2 message exchanges, a related issue to CVE-2008-3263.	Asterisk