An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 153.4Upgrade to the latest version of Mozilla Thunderbird | Sep 30, 2026 | Sep 30, 2026 |
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