CVE-2026-84641 (GCVE-0-2026-84641)
Vulnerability from cvelistv5
Published
2026-09-01 21:33
Modified
2026-09-02 18:47
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
References
Impacted products
Vendor Product Version
Mozilla Thunderbird Unaffected: 140.15
Unaffected: 153.2
Unaffected: 155
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