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VulnerabilityPublished Updated

CVE-2025-0244: Mozilla Firefox · Open Redirect

Affects Mozilla FirefoxSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium : upgrade to 134 when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
7.3% chance of exploitation in 30 days – higher than 94% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 134
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Mozilla Firefox to 134.

Affected software

ProductAffectedFixed in
Mozilla FirefoxAffected
  • <134
Fixed in
  • 134

AI-suggested

This vulnerability has been fixed in Firefox version 134. Users and administrators should update Firefox on Android devices to version 134 or later to remediate this issue. No additional mitigation actions are required once the update is applied.

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.

References

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