CVE-2024-11696

Name: CVE-2024-11696
Creator: NVD / NIST
Published: 2024-11-26T14:15:19.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2024-11696 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The application failed to account for exceptions thrown by the `loadManifestFromFile` method during add-on signature verification. This flaw, triggered by an invalid or unsupported extension manifest, could have caused runtime errors that disrupted the signature validation process. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

The application failed to account for exceptions thrown by the `loadManifestFromFile` method during add-on signature verification. This flaw, triggered by an invalid or unsupported extension manifest, could have caused runtime errors that disrupted the signature validation process. As a result, the enforcement of signature validation for unrelated add-ons may have been bypassed. Signature validation in this context is used to ensure that third-party applications on the user's computer have not tampered with the user's extensions, limiting the impact of this issue. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS Probability

0.35%

26.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 128.5.0
Mozilla	Firefox	< 133.0
Mozilla	Thunderbird	< 128.5.0
Mozilla	Thunderbird	>= 129.0, < 133.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1929600Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2024-63/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-64/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-67/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-68/Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/11/msg00029.html

Timeline

Published: Nov 26, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-11696?

How severe is CVE-2024-11696?

CVE-2024-11696 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2024-11696?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-11696?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST