9.8

CVE-2025-13023: mozilla firefox

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2025-13023CGA-3m3x-87h6-w6j6CGA-89wc-vvvq-ccc4
Published 11-11-2025Last modified 13-04-2026
Open JSON

Vulnerability summary

CVE-2025-13023 is a critical (CVSS 9.8) vulnerability in mozilla firefox. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
OPENSUSE-SU-2025:15735-1OPENSUSE-SU-2026:11373-1CGA-RWH9-6JJR-CF5M

Timeline

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

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 145 and Thunderbird 145.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

+0.03 pp

From 0.36% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.38%

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)
Chainguard1 product
  • firefox< 145-r0
Mozilla1 product
Wolfi1 product
  • firefox< 145-r0

4 vendors · 11 products

References

6 links