CVE-2023-29531: mozilla firefox Out-of-bounds Write
Vulnerability summary
CVE-2023-29531 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in mozilla firefox. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 19-06-2023PublishedVulnerability first disclosed.
- 11-12-2024Last modifiedVulnerability information updated.
Description
An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash. *This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.97%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.97% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected 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=1794292Permissions 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