Is CVE-2021-35211 actively exploited?

CVE-2021-35211 has no public evidence of in-the-wild exploitation as of 2025-10-27.

What is the CVSS score for CVE-2021-35211?

CVE-2021-35211 has a CVSS score of 9 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

How do I patch CVE-2021-35211?

Patch guidance is available from solarwinds security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-35211.

Fix CVE-2021-35211 - CRITICAL solarwinds serv-u

Q: Which products are affected by CVE-2021-35211?

3 products: solarwinds serv-u, solarwinds serv-u, solarwinds serv-u.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: SOLARWINDS
Published: 7/14/2021
Last Modified: 10/27/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-35211

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary