5.4

CVE-2025-5267: mozilla firefox

CVSS: 5.4v3.1MediumModified
AliasesUBUNTU-CVE-2025-5267DEBIAN-CVE-2025-5267CGA-59pf-fm9p-xmpf
Published 27-05-2025Last modified 13-04-2026

Vulnerability summary

CVE-2025-5267 is a medium (CVSS 5.4) vulnerability in mozilla firefox. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.9% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 38 · Related 12

Timeline

  1. 27-05-2025
    PublishedVulnerability first disclosed.
  2. 13-04-2026
    Last modifiedVulnerability information updated.

Description

A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious page. This vulnerability was fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.27%

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< 128.11-r0
  • firefox-esr< 128.11-r0
Debian2 products
  • firefox-esr< 128.11.0esr-1~deb12u1 | < 128.11.0esr-1
  • thunderbird< 1:128.11.0esr-1~deb12u1 | < 1:128.11.0esr-1
Mozilla1 product
Wolfi1 product
  • firefox< 128.11-r0

5 vendors · 14 products

References

13 links
Show all 13 references