What’s Vulnerable › Vulnerabilities

CVE-2024-8381

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-03 · updated 2026-06-17
• Weakness: CWE-843

Description

A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.

Affected products

• Mozilla Firefox: before 130.0 — fixed in 130.0
• Mozilla Firefox ESR: before 115.15; from 128.0 before 128.2 — fixed in 115.15, 128.2

How to fix

Upgrade to a fixed version: Mozilla Firefox 130.0; Mozilla Firefox ESR 115.15, 128.2. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1912715
• https://www.mozilla.org/security/advisories/mfsa2024-39/
• https://www.mozilla.org/security/advisories/mfsa2024-40/
• https://www.mozilla.org/security/advisories/mfsa2024-41/
• https://www.mozilla.org/security/advisories/mfsa2024-43/
• https://www.mozilla.org/security/advisories/mfsa2024-44/
• https://lists.debian.org/debian-lts-announce/2024/09/msg00012.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00025.html

Get alerted when CVE-2024-8381 or the next vulnerability affects your stack