Vulnerability in Mozilla Firefox
CVE-2023-5732
An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
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: 0.010 (60.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · 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
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00037.html (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00042.html (Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5535 (Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5538 (Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2023-34/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2023-46/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2023-47/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-5732?
- CVE-2023-5732 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 6.5/10. Published 2023-10-25.
- How severe is CVE-2023-5732?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-5732 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.