CVE-2021-35211
Serv-U Remote Memory Escape Vulnerability
- Published
- Jul 14, 2021
- Updated
- Oct 21, 2025
- Assigning CNA
- SolarWinds
- Evidence observed
- Nov 3, 2021
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
3- CVE-2021-35211Exploit
Serv-U-FTP CVE-2021-35211 exploit
- CVE-2021-35211Exploit
Python exploit for Serv-U SSH vulnerability (CVE-2021-35211) with multiple payload modes: stage, exec, and download-execute, enabling shellcode execution and command injection.
Simple Serv-U CVE-2021-35211 PoC
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.