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CVE-2026-74988

Internally found bugs fixed in Thunderbird ESR 153.1 and Thunderbird 154 PUBLISHED

Description (CNA)

Internally found bugs present in Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxunaffected 153.1 through 153.*; unaffected 154 through *
Mozilla / Thunderbirdunaffected 153.1 through 153.*; unaffected 154 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.