CVE-2021-35247

CVE Database · CVE-2021-35247

CVE-2021-35247

· MEDIUMAnalyzed

CVSS v3.1

4.3

EPSS

3.36%

Published

Jan 10, 2022

Modified

Oct 27, 2025

CISA Known Exploited Vulnerability

Added: 2022-01-21 · Due: 2022-02-04

Apply updates per vendor instructions.

Public PoC / Exploit (1)

All weaponized →

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

Description

Serv-U web login screen to LDAP authentication was allowing characters that were not sufficiently sanitized. SolarWinds has updated the input mechanism to perform additional validation and sanitization. Please Note: No downstream affect has been detected as the LDAP servers ignored improper characters. To insure proper input validation is completed in all environments. SolarWinds recommends scheduling an update to the latest version of Serv-U.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weaknesses (CWE)

CWE-20

Affected Products (1)

solarwinds · serv-u (up to 15.3)vulnerable

References (5)

https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3_release_notes.htm

Release NotesVendor Advisory

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35247

Broken LinkVendor Advisory

https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3_release_notes.htm

Release NotesVendor Advisory

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35247

Broken LinkVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35247

US Government Resource

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