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CVE-2026-12290

Memory safety bug fixed in Thunderbird 152 PUBLISHED

Description (CNA)

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxunaffected 115.37 through 115.*; unaffected 140.12 through 140.*; unaffected 152 through *
Mozilla / Thunderbirdunaffected 140.12 through 140.*; unaffected 152 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bug fixed in Thunderbird ESR 140.12