CVE-2021-35247Actively exploitedAdded to KEV 2022-01-21

SolarWinds Serv-U Improper Input Validation Vulnerability

SolarWinds, Serv-U

Description

SolarWinds Serv-U versions 15.2.5 and earlier contain an improper input validation vulnerability that allows attackers to build and send queries without sanitization.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

Medium

3.5%

estimated chance of real-world exploitation in the next 30 days, higher than 89.0% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-02-04

CWE-20

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