CVE-2021-35211 - CVE House
Back to Database
Status published Critical CVE-2021-35211

Serv-U Remote Memory Escape Vulnerability

Vulnerability Description

Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-35211

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • SolarWinds would like to thank the Microsoft Threat Intelligence Center (MSTIC) and Microsoft Offensive Security Research teams for reporting on the issue in a responsible manner.

Affected Vendor

Affected Software

Serv-U Managed File Transfer Server and Serv-U Secured FTP
Vulnerable Versions:
SolarWinds Serv-U

Timeline

Official Publish: July 14th, 2021
Last Modified: October 21st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.