CVE-2021-35211

CVE Database · CVE-2021-35211

CVE-2021-35211

· CRITICALAnalyzed

CVSS v3.1

9.0

EPSS

91.16%

Published

Jul 14, 2021

Modified

Oct 27, 2025

CISA Known Exploited Vulnerability

Added: 2021-11-03 · Due: 2021-11-17

Apply updates per vendor instructions.

Public PoC / Exploit (3)

All weaponized →

TrickestTrickest PoC index GitHub PoCNattiSamson/Serv-U-CVE-2021-35211★12 GitHub PoC0xhaggis/CVE-2021-35211★1

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

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

Weaknesses (CWE)

CWE-787CWE-787

Affected Products (3)

solarwinds · serv-u (up to 15.2.3)vulnerable

solarwinds · serv-uvulnerable

References (5)

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit

PatchVendor Advisory

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211

PatchVendor Advisory

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit

PatchVendor Advisory

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211

PatchVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35211

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