Buffer overflow in Mozilla Firefox
CVE-2020-6796
A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 73 and Firefox < ESR68.5.
Vulnerability class: Buffer Overflow
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: 0.016 (74.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2020-05/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2020-06/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required)
- usn.ubuntu.com/4278-2/ (vendor-advisory)
- security.gentoo.org/glsa/202003-02 (vendor-advisory)
Frequently asked questions
- What is CVE-2020-6796?
- CVE-2020-6796 is a high-severity vulnerability in Mozilla Firefox, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-03-02.
- How severe is CVE-2020-6796?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-6796 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.