PT-2026-77022 · Mozilla · Thunderbird+1
CVE-2026-74989
·
Published
2026-08-18
·
Updated
2026-09-01
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Firefox version 153
Thunderbird version 153
Description
Internal bugs were identified that exhibit evidence of memory corruption or other security-relevant defects, which could potentially be exploited.
Recommendations
Update Firefox to version 154.
Update Thunderbird to version 154.
Fix
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Firefox
Thunderbird