UpHeron
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Servers and applications

CVE-2021-35247

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…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 21 Jan 2022.

Severity
Medium 5.3
Published
10 Jan 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
15.3
Sources
NVD

Affected software

SoftwareAffected versions
SolarWinds Serv-UServers and applications · cpe:a:solarwinds:serv-u
  • Every version before 15.3

Known exploited

CISA name
SolarWinds Serv-U Improper Input Validation Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
4 Feb 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-35247
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-35247