Vulnerability in Mozilla Firefox
CVE-2017-5419
If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.022 · change: -0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Thunderbird — versions unspecified
References
- www.mozilla.org/security/advisories/mfsa2017-09/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Exploit, Patch, Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2017-05/ (Vendor Advisory)
- www.securitytracker.com/id/1037966 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/96692 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-5419?
- CVE-2017-5419 is a high-severity vulnerability in Mozilla Firefox. CVSS score: 7.5/10. Published 2018-06-11.
- How severe is CVE-2017-5419?
- High severity. CVSS v3 base score is 7.5 out of 10.