8.8

CVE-2025-13014: mozilla firefox Use After Free

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2025-13014DEBIAN-CVE-2025-13014CGA-cjh5-h9p9-5rx4
Published 11-11-2025Last modified 13-04-2026
Open JSON

Vulnerability summary

CVE-2025-13014 is a high (CVSS 8.8) Use After Free vulnerability in mozilla firefox. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 11
DLA-4370-1DLA-4372-1DSA-6054-1DSA-6059-1MGASA-2025-0300MGASA-2025-0305

Timeline

  1. 11-11-2025
    PublishedVulnerability first disclosed.
  2. 13-04-2026
    Last modifiedVulnerability information updated.

Description

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.02 pp

From 0.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu8 products
  • mozjs102All versions (No fix recorded)
  • mozjs115All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard2 products
  • firefox< 140.5-r0
  • firefox-esr< 140.5-r0
Debian2 products
  • firefox-esr< 140.5.0esr-1~deb12u1 | < 140.5.0esr-1~deb13u1 | < 140.5.0esr-1
  • thunderbird< 1:140.5.0esr-1~deb12u1 | < 1:140.5.0esr-1~deb13u1 | < 1:140.5.0esr-1
Mozilla1 product
  • firefox< 115.30.0 | < 145.0 | ≥ 140.0, < 140.5.0
Wolfi1 product
  • firefox< 140.5-r0

5 vendors · 14 products

References

12 links
Show all 12 references