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TI-2025-05154 Aliases CVE-2025-5715GHSA-2g9r-w7mh-f2h2

Signal App Biometric Authentication missing critical step in authentication

Priority MEDIUM 40CWE-304Published · Updated

Key facts

Attack vector
Physical
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

A vulnerability was found in Signal App 7.41.4 on Android. It has been declared as problematic. This vulnerability affects unknown code of the component Biometric Authentication Handler. The manipulation leads to missing critical step in authentication. It is possible to launch the attack on the physical device. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00312 24th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SignalApp7.41.4—No fix listedCNA
  • App VendorSignal Affected 7.41.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:signal:signal:7.41.4:*:*:*:*:android:*:*7.41.4VulnerableSignal
  • cpe:2.3:a:signal:signal:7.41.4:*:*:*:*:android:*:* Versions 7.41.4 Vulnerable ·Signal

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5715
  2. 2026-10-03 Alias added: GHSA-2g9r-w7mh-f2h2

References

Exploit 2

  • TI-2018-11532 The image rendering component (createGenericPreview) of the Open Whisper Signal app… CVSS 3.0HIGH 8.6
  • TI-2022-11105 The Signal app before 5.34 for iOS allows URI spoofing via RTLO injection. CVSS 3.1HIGH 7.5
  • TI-2018-07005 The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers… CVSS 3.0MEDIUM 6.8
  • TI-2020-04681 Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote… CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences