Vulnerability in Mozilla Firefox
CVE-2020-26963
Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by introducing rate-limiting to these API calls. This vulnerability affects Firefox < 83.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.008 · change: -0.000
Affected products
- Mozilla Firefox — versions < 83
References
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2020-50/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-26963?
- CVE-2020-26963 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 4.3/10. Published 2020-12-09.
- How severe is CVE-2020-26963?
- Medium severity. CVSS v3 base score is 4.3 out of 10.