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xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks...

High severity Unreviewed Published Feb 17, 2022 to the GitHub Advisory Database • Updated May 5, 2025

Package

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Affected versions

Unknown

Patched versions

Unknown

Description

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

References

Published by the National Vulnerability Database Feb 16, 2022
Published to the GitHub Advisory Database Feb 17, 2022
Last updated May 5, 2025

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(94th percentile)

Weaknesses

CVE ID

CVE-2022-25235

GHSA ID

GHSA-8mw4-grgw-m3fp

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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