← Back to CVEs

CVE-2021-35211

CRITICALCISA KEV

9.0

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.

CVE Details

CVSS v3.1 Score9.0

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published7/14/2021

Last Modified10/27/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorSolarWinds

ProductServ-U

Vulnerability NameSolarWinds Serv-U Remote Code Execution Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseKnown

Affected Products

solarwinds:serv-u

Weaknesses (CWE)

CWE-787CWE-787

References

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

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211(psirt@solarwinds.com)

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit(af854a3a-2127-422b-91ae-364da2661108)

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35211(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.