Vulnerability in Mozilla Firefox
CVE-2023-37207
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
- Debian Linux — versions 10.0, 11.0, 12.0
Weakness classification (CWE)
References
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2023-22/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2023-23/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2023-24/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2023/07/msg00006.html (Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5450 (Third Party Advisory)
- www.debian.org/security/2023/dsa-5451 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/07/msg00015.html
Frequently asked questions
- What is CVE-2023-37207?
- CVE-2023-37207 is a medium-severity vulnerability in Mozilla Firefox, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.5/10. Published 2023-07-05.
- How severe is CVE-2023-37207?
- Medium severity. CVSS v3 base score is 6.5 out of 10.