CVE-2024-4770: mozilla firefox Use After Free
CVSS: 8.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2024-4770DEBIAN-CVE-2024-4770CGA-fvmx-5q5p-6v2cCGA-rxmm-xvhf-fmxw
Published 14-05-2024Last modified 13-02-2025
Vulnerability summary
CVE-2024-4770 is a high (CVSS 8.8) Use After Free vulnerability in mozilla firefox. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.59%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 32 · Related 10DLA-3815-1DLA-3817-1DSA-5691-1DSA-5693-1MGASA-2024-0189MGASA-2024-0191OPENSUSE-SU-2024:13980-1OPENSUSE-SU-2024:13981-1OPENSUSE-SU-2024:14572-1RHSA-2024:2881RHSA-2024:2882RHSA-2024:2883RHSA-2024:2884RHSA-2024:2885RHSA-2024:2886RHSA-2024:2887RHSA-2024:2888RHSA-2024:2903RHSA-2024:2904RHSA-2024:2905RHSA-2024:2906RHSA-2024:2911RHSA-2024:2912RHSA-2024:2913RHSA-2024:3338RHSA-2024:3783RHSA-2024:3784SUSE-SU-2024:1676-1SUSE-SU-2024:1770-1SUSE-SU-2024:1858-1USN-6779-1USN-6782-1CGA-FRVJ-W4JW-3Q6QCGA-HVH8-G9JH-87FP
Timeline
- 14-05-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
CVSS metrics
5 scores · 5 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 5 agree
- 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
- OSV · ChainguardEcosystem 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
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
0.00 pp
From 0.59% on 19-09-2026
19-09-202619-10-2026
EPSS score0.59%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu8 products
- firefox< 126.0+build2-0ubuntu0.20.04.1
- mozjs102All versions (No fix recorded)
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 126 | < 115.11.0 | < 126.0
- firefox_esr≥ unspecified, < 115.11
- thunderbird≥ unspecified, < 115.11 | < 115.11.0
Debian2 products
- firefox-esr< 115.11.0esr-1~deb12u1 | < 115.11.0esr-1
- thunderbird< 1:115.11.0-1~deb12u1 | < 1:115.11.0-1
Chainguard1 product
- firefox-esr< 115.11.0-r0
4 vendors · 14 products
