3.9

CVE-2025-1939: mozilla firefox

CVSS: 3.9v3.1LowModified
AliasesCGA-7hv2-g5hq-q3fxCGA-pr9x-cjvx-pwcgCGA-7q47-hjvx-3w3w
Published 04-03-2025Last modified 13-04-2026
Open JSON

Vulnerability summary

CVE-2025-1939 is a low (CVSS 3.9) vulnerability in mozilla firefox. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 7.9% of scored vulnerabilities.

Overall risk
16/100
0100
Low · default modelHow is this calculated?
CVSS score
3.9/10
010
Low · v3.1 (CVE.org)
EPSS score
0.19%
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 2 · Related 4
OPENSUSE-SU-2025:14861-1OPENSUSE-SU-2026:11373-1CGA-HFX5-H239-PHWVUBUNTU-CVE-2025-1939

Timeline

  1. 04-03-2025
    PublishedVulnerability first disclosed.
  2. 13-04-2026
    Last modifiedVulnerability information updated.

Description

Android apps can load web pages using the Custom Tabs feature. This feature supports a transition animation that could have been used to trick a user into granting sensitive permissions by hiding what the user was actually clicking. This vulnerability was fixed in Firefox 136.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.19%

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

Chainguard2 products
  • firefox< 136-r0
  • firefox-esr< 136-r0
Mozilla1 product
Wolfi1 product
  • firefox< 136-r0

3 vendors · 4 products

References

3 links