Vulnerability in Mozilla Firefox
CVE-2024-0743
An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.9, and Thunderbird < 115.9.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · 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 (Permissions Required)
- lists.debian.org/debian-lts-announce/2024/03/msg00010.html
- www.mozilla.org/security/advisories/mfsa2024-01/ (Release Notes, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-13/
- www.mozilla.org/security/advisories/mfsa2024-14/
- lists.debian.org/debian-lts-announce/2024/03/msg00022.html
- lists.debian.org/debian-lts-announce/2024/03/msg00028.html
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-0743?
- CVE-2024-0743 is a high-severity vulnerability in Mozilla Firefox, classified under CWE-252. CVSS score: 7.5/10. Published 2024-01-23.
- How severe is CVE-2024-0743?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-0743 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.