Use After Free in Mozilla Firefox
CVE-2024-4770
When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · 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 (Exploit, Issue Tracking, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-21/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-22/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-23/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2024/05/msg00010.html (Mailing List)
- lists.debian.org/debian-lts-announce/2024/05/msg00012.html (Mailing List)
Frequently asked questions
- What is CVE-2024-4770?
- CVE-2024-4770 is a high-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 8.8/10. Published 2024-05-14.
- How severe is CVE-2024-4770?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-4770 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.