CVE-2024-29943: mozilla firefox Out-of-bounds Read
CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2024-29943CGA-4885-w3jv-8fq3CGA-pfm9-hrf2-877h
Published 22-03-2024Last modified 13-02-2025
Vulnerability summary
CVE-2024-29943 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in mozilla firefox. EPSS estimates a 22.93% chance of exploitation in the next 30 days, higher than 97.7% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
22.93%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 4Timeline
- 22-03-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination. This vulnerability affects Firefox < 124.0.1.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- 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
22.93%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 22.93% on 18-09-2026
18-09-202618-10-2026
EPSS score22.93%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu7 products
- firefox< 124.0.1+build1-0ubuntu0.20.04.1
- mozjs102All versions (No fix recorded)
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
Chainguard1 product
- firefox-esr< 124.0.1-r0
Mozilla1 product
- firefox≥ unspecified, < 124.0.1 | < 124.0.1
3 vendors · 9 products