CVE-2024-2608

`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.

Affected

Mozilla · Firefox · Firefox ESR · Thunderbird

CVSS v3.1 CNA

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

EPSS

0.39% chance of exploitation in the next 30 days, 31st percentile

Published

2024-03-19

Updated

2025-03-13

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1880692

Security advisories

• https://www.mozilla.org/security/advisories/mfsa2024-12
• https://www.mozilla.org/security/advisories/mfsa2024-13
• https://www.mozilla.org/security/advisories/mfsa2024-14

References

• CVE Record
• NVD entry