CVE-2023-29532: mozilla firefox
Vulnerability summary
CVE-2023-29532 is a medium (CVSS 5.5) vulnerability in mozilla firefox. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 19-06-2023PublishedVulnerability first disclosed.
- 11-12-2024Last modifiedVulnerability information updated.
Description
A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service at an update file on a malicious SMB server. The update file can be replaced after the signature check, before the use, because the write-lock requested by the service does not work on a SMB server. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu5 products
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
- mozjs91All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 112 | < 112.0
- firefox_esr≥ unspecified, < 102.10 | < 102.10
- thunderbird≥ unspecified, < 102.10 | < 102.10
2 vendors · 8 products
References
9 links- bugzilla.mozilla.org/show_bug.cgi?id=1806394Permissions Required
- www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-14/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-15/Vendor Advisory