CVE-2021-35211

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2021-35211
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-14 21:15:00 UTC
Updated2023-08-08 14:22:00 UTC
DescriptionMicrosoft 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.

Risk And Classification

EPSS: 0.943210000 probability, percentile 0.999510000 (date 2026-04-02)

CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Known

Problem Types: CWE-787

CISA Known Exploited Vulnerability

VendorSolarWinds
ProductServ-U
NameSolarWinds Serv-U Remote Code Execution Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2021-35211

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Solarwinds Serv-u All All All All
Application Solarwinds Serv-u 15.2.3 - All All
Application Solarwinds Serv-u 15.2.3 hotfix1 All All

References

ReferenceSourceLinkTags
Microsoft discovers threat actor targeting SolarWinds Serv-U software with 0-day exploit | Microsoft Security Blog MISC www.microsoft.com
SolarWinds Trust Center Security Advisories | CVE-2021-35211 MISC www.solarwinds.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Vendor Comments And Credit

Discovery Credit

LEGACY: 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.

Legacy QID Mappings

  • 375701 SolarWinds Serv-U FTP Remote Code Execution Vulnerability (CVE-2021-35211)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report