CVE-2024-2608

Name: CVE-2024-2608
Creator: NVD / NIST
Published: 2024-03-19T12:15:08.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.4/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2024-2608 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. `AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

`AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

Metrics

CVSS 3.1

8.4/10

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

EPSS Probability

0.39%

30.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-680

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 115.9.0
Mozilla	Firefox	< 124.0
Mozilla	Thunderbird	< 115.9.0
Debian	Debian Linux	10.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1880692Exploit, Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/03/msg00022.htmlMailing List
https://lists.debian.org/debian-lts-announce/2024/03/msg00028.htmlMailing List
https://www.mozilla.org/security/advisories/mfsa2024-12/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-14/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1880692Exploit, Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/03/msg00022.htmlMailing List
https://lists.debian.org/debian-lts-announce/2024/03/msg00028.htmlMailing List
https://www.mozilla.org/security/advisories/mfsa2024-12/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-14/Vendor Advisory

Timeline

Published: Mar 19, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-2608?

How severe is CVE-2024-2608?

CVE-2024-2608 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2024-2608?

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-2024-2608?

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

Scan your code now

Source: NVD / NIST