CVE-2024-9402: mozilla firefox
Vulnerability summary
CVE-2024-9402 is a critical (CVSS 9.8) vulnerability in mozilla firefox. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 28 · Related 13Timeline
- 01-10-2024PublishedVulnerability first disclosed.
- 01-10-2024Last modifiedVulnerability information updated.
Description
Memory safety bugs present in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2. 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 < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVSS metrics
6 scores · 6 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
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem 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
0.61%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.61% 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 causeAffected systems
Ubuntu9 products
- firefox< 131.0+build1.1-0ubuntu0.20.04.1
- mozjs102All versions (No fix recorded)
- mozjs115All versions (No fix recorded)
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 131 | < 128.3.0 | < 131.0
- firefox_esr≥ unspecified, < 128.3
- thunderbird≥ unspecified, < 128.3 | ≥ unspecified, < 131 | < 128.3.0 | ≥ 129.0, < 131.0
Chainguard2 products
- firefox< 136.0.2-r0
- firefox-esr< 128.3.0-r0
Debian1 product
- thunderbird< 1:128.3.0esr-1
Wolfi1 product
- firefox< 136.0.2-r0
5 vendors · 16 products
