CVE-2023-32213

HIGH 8.8CVE-2023-32213 · Published 02/06/2023 · updated 23/10/2026

In short

CVE-2023-32213 is a HIGH (CVSS 8.8) vulnerability affecting firefox (mozilla), firefox esr (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 0.75%, higher than 55.1% of all vulnerabilities.
Fix: update to 113.0, 102.11 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 113.0`	`113.0`
firefox esr mozilla	`< 102.11`	`102.11`
thunderbird mozilla	`< 102.11`	`102.11`

Description

When reading a file, an uninitialized value could have been used as read limit. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

References

bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
security.gentoo.org/glsa/202312-03
security.gentoo.org/glsa/202401-10
mozilla.org/security/advisories/mfsa2023-16 · Vendor Advisory
mozilla.org/security/advisories/mfsa2023-17 · Vendor Advisory
mozilla.org/security/advisories/mfsa2023-18 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 113.0

113.0

firefox esr

mozilla

< 102.11

102.11

thunderbird

mozilla

< 102.11

102.11

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