Serv U
CVE-2021-35223
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.
AnalysisAI
The Serv-U File Server allows for events such as user login failures to be audited by executing a command. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-20. The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution. Affected products include: Solarwinds Serv-U.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Remote denial-of-service in SolarWinds Serv-U allows unauthenticated attackers to crash the Serv-U service by sending sp
Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Mem
SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive fil
In SolarWinds Serv-U before 15.2.2 Hotfix 1, there is a directory containing user profile files (that include users' pas
A denial of service vulnerability in SolarWinds Serv-U before 15.1.6 HFv1 allows an authenticated user to crash the appl
Share/IncomingWizard.htm in SolarWinds Serv-U before 15.2.3 mishandles the user-supplied SenderEmail parameter, aka "Sha
Second type confusion vulnerability in SolarWinds Serv-U. Different attack vector from CVE-2025-40539 but same impact —
Type confusion vulnerability in SolarWinds Serv-U enables arbitrary code execution. Second critical Serv-U vulnerability
Broken access control in SolarWinds Serv-U allows unauthorized user creation by exploiting privilege assignment flaws. F
IDOR vulnerability in SolarWinds Serv-U allows accessing objects belonging to other users. Fourth critical Serv-U vulner
SolarWinds Serv-U is vulnerable to a directory traversal vulnerability where remote code execution is possible depending
Serv-U server responds with valid CSRFToken when the request contains only Session. Rated high severity (CVSS 8.8), this
Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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