CVE-2024-29943
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 22.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination. This vulnerability affects Firefox < 124.0.1.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 22.93% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-787
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
EPSS 22.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2024/03/23/1Mailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1886849Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-15/Vendor Advisory
- http://www.openwall.com/lists/oss-security/2024/03/23/1Mailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1886849Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-15/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.