Vulnerability in Mozilla Firefox
CVE-2024-6603
In an out-of-memory scenario an allocation could fail but free would have been called on the pointer afterwards leading to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2024-29/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-30/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-31/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-32/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-6603?
- CVE-2024-6603 is a high-severity vulnerability in Mozilla Firefox, classified under CWE-823. CVSS score: 7.4/10. Published 2024-07-09.
- How severe is CVE-2024-6603?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2024-6603 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.