Snapshot of public data from 31 Oct 2026, 12:50:06. This data is not updated until the API is deployed.

Back to the watch

CVE-2021-35247

SolarWinds Serv-U Improper Input Validation Vulnerability

Watch priority : UrgentCVSS 4.3 v3.1Exploited

Why this priority

?

Generic watch priority computed by public, versioned rules. It does not know your assets. See the glossary

  • Présent dans le catalogue CISA KEV (exploitation confirmée)

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.

Affected products

VendorProductVersions
SolarWindsServ-U
  • from 15.2.5 and previous versions to 15.3 excluded

Revision history

  1. Revision 3

  2. Revision 2

    Update : Affected versions changed

  3. Revision 1

    New record

Qualification

CVSS severity
?

Technical severity score between 0 and 10, with its version (3.1, 4.0). See the glossary

4.3 MEDIUM CVSS v3.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
KEV catalog
?

CISA catalog of vulnerabilities with confirmed exploitation. Absence from the catalog does not prove absence of exploitation. See the glossary

Listed
Exploitation
Confirmed
EPSS probability
?

Probability, between 0 and 1, that a vulnerability is exploited in the next 30 days, published daily by FIRST. Always dated. See the glossary

Unknown
Confidence
?

Quality of the sources behind the record. It is not a risk score. See the glossary

High

Priority rules, version 1

CISA KEV catalog

Added on
21 January 2022
Federal due date
4 February 2022
Required action
Apply updates per vendor instructions.
Ransomware use
Unknown

Record

Published on
7 January 2022
Weaknesses (CWE)
CWE-20

Sources

References

CVE-2021-35247 SolarWinds Serv-U Improper Input Validation Vulnerability · Avanguard TACTIC