What’s Vulnerable › Vulnerabilities

CVE-2024-8394

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-06 · updated 2026-06-17
• Weakness: CWE-416

Description

When aborting the verification of an OTR chat session, an attacker could have caused a use-after-free bug leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 128.2.

Affected products

• Mozilla Thunderbird: before 128.2.0 — fixed in 128.2.0

How to fix

Upgrade to a fixed version: Mozilla Thunderbird 128.2.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1895737
• https://www.mozilla.org/security/advisories/mfsa2024-43/

Get alerted when CVE-2024-8394 or the next vulnerability affects your stack