5.3

CVE-2025-0244: mozilla firefox Open Redirect

CVSS: 5.3v3.1MediumModified
AliasesCGA-5wmv-vgf3-5vqhCGA-h85c-vxq6-7wcqCGA-2h43-w55q-9r99
Published 07-01-2025Last modified 13-04-2026

Vulnerability summary

CVE-2025-0244 is a medium (CVSS 5.3) Open Redirect vulnerability in mozilla firefox. EPSS estimates a 7.39% chance of exploitation in the next 30 days, higher than 94.3% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
7.39%
0%100%
Low · +0.85 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 5

Timeline

  1. 07-01-2025
    PublishedVulnerability first disclosed.
  2. 13-04-2026
    Last modifiedVulnerability information updated.

Description

When redirecting to an invalid protocol scheme, an attacker could spoof the address bar. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 134.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

7.39%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

+0.85 pp

From 6.54% on 19-09-2026

19-09-202619-10-2026
EPSS score
7.39%

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< 134.0-r0
  • firefox-esr< 134-r0
Mozilla1 product
Wolfi1 product
  • firefox< 134.0-r0

3 vendors · 4 products

References

2 links