CVE-2021-35247: listed in the CISA KEV catalog

CVE-2021-35247 · CVSS 4.3 MEDIUM · EPSS 3% · KEV 2022-01-21

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.

Is CVE-2021-35247 exploited?

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2021-35247

PlainSec has not published a story about this CVE.

Primary sources

What this record does not say

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.