CVE-2023-29550: mozilla firefox
Vulnerability summary
CVE-2023-29550 is a high (CVSS 8.8) vulnerability in mozilla firefox. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 32 · Related 10Timeline
- 02-06-2023PublishedVulnerability first disclosed.
- 10-01-2025Last modifiedVulnerability information updated.
Description
Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
+0.01 pp
From 0.70% 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 causeNo weakness data has been published for this record.
Affected systems
Ubuntu8 products
- firefox< 112.0+build2-0ubuntu0.18.04.1 | < 112.0+build2-0ubuntu0.20.04.1
- mozjs102< 102.11.0-0ubuntu0.22.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
Mozilla7 products
- firefox≥ unspecified, < 112 | < 112.0
- firefox_esr≥ unspecified, < 102.10 | < 102.10
- firefox for android≥ unspecified, < 112
- firefox_mobile< 112.0
- focus< 112.0
Debian2 products
- firefox-esr< 102.10.0esr-1
- thunderbird< 1:102.10.0-1
3 vendors · 17 products
References
13 links- www.mozilla.org/security/advisories/mfsa2023-15/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-14/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory
