CVE-2021-3516

Description

There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

Patch Available

Fix available through Seal Security.  
No upgrade required, protect your application instantly.

Fix without upgrading

Score

Severity

Ecosystem

RPM

Publish Date

June 1, 2021

Modified Date

November 20, 2025

Score Vector

Affected Versions