What’s Vulnerable › Vulnerabilities

CVE-2024-29943

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 22.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-22 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Mozilla Firefox: before 124.0.1 — fixed in 124.0.1

How to fix

Upgrade to a fixed version: Mozilla Firefox 124.0.1. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2024/03/23/1
• https://bugzilla.mozilla.org/show_bug.cgi?id=1886849
• https://www.mozilla.org/security/advisories/mfsa2024-15/
• http://www.openwall.com/lists/oss-security/2024/03/23/1
• https://bugzilla.mozilla.org/show_bug.cgi?id=1886849
• https://www.mozilla.org/security/advisories/mfsa2024-15/

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