Netsarang Xshell
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By the Year
In 2026 there have been 0 vulnerabilities in Netsarang Xshell. Last year, in 2025 Xshell had 1 security vulnerability published. Right now, Xshell is on track to have less security vulnerabilities in 2026 than it did last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 0 | 0.00 |
| 2025 | 1 | 0.00 |
| 2024 | 0 | 0.00 |
| 2023 | 0 | 0.00 |
| 2022 | 0 | 0.00 |
| 2021 | 2 | 6.40 |
It may take a day or so for new Xshell vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Netsarang Xshell Security Vulnerabilities
NetSarang Xmanager 5.0 (Build 1232) DLL Backdoor RCE
CVE-2017-20203
- October 09, 2025
NetSarang Xmanager Enterprise 5.0 Build 1232, Xmanager 5.0 Build 1045, Xshell 5.0 Build 1322, Xftp 5.0 Build 1218, and Xlpd 5.0 Build 1220 contain a malicious nssock2.dll that implements a multi-stage, DNS-based backdoor. The dormant library contacts a C2 DNS server via a specially crafted TXT record for a monthgenerated domain. After receiving a decryption key, it then downloads and executes arbitrary code, creates an encrypted virtual file system (VFS) in the registry, and grants the attacker full remote code execution, data exfiltration, and persistence. NetSarang released builds for each product line that remediated the compromise: Xmanager Enterprise Build 1236, Xmanager Build 1049, Xshell Build 1326, Xftp Build 1222, and Xlpd Build 1224. Kaspersky Lab identified an instance of exploitation in the wild in August 2017.
Embedded Malicious Code
Xshell before 7.0.0.76
CVE-2021-42095
7.5 - High
- October 07, 2021
Xshell before 7.0.0.76 allows attackers to cause a crash by triggering rapid changes to the title bar.
NetSarang Xshell 7 before Build 0077 includes unintended code strings in paste operations.
CVE-2021-37326
5.3 - Medium
- August 15, 2021
NetSarang Xshell 7 before Build 0077 includes unintended code strings in paste operations.
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