Signal App 7.41.4 on Android Biometric Authentication critical step in authentication

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.41

Summaryinfo

A vulnerability, which was classified as problematic, was found in Signal App 7.41.4 on Android. This affects an unknown part of the component Biometric Authentication Handler. Executing a manipulation can lead to critical step in authentication. This vulnerability is handled as CVE-2025-5715. The physical device can be targeted for the attack. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in Signal App 7.41.4 on Android. It has been declared as problematic. This vulnerability affects some unknown functionality of the component Biometric Authentication Handler. The manipulation with an unknown input leads to a critical step in authentication vulnerability. The CWE definition for the vulnerability is CWE-304. The product implements an authentication technique, but it skips a step that weakens the technique. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at drive.google.com. This vulnerability was named CVE-2025-5715. The exploitation appears to be difficult. The attack needs to be approached locally. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at drive.google.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-17044). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.8
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔒

CNA Base Score: 3.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Critical step in authentication
CWE: CWE-304
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/05/2025 Advisory disclosed
06/05/2025 +0 days VulDB entry created
09/17/2025 +104 days VulDB entry last update

Sourcesinfo

Advisory: drive.google.com
Status: Not defined

CVE: CVE-2025-5715 (🔒)
GCVE (CVE): GCVE-0-2025-5715
GCVE (VulDB): GCVE-100-311236
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 06/05/2025 07:10 AM
Updated: 09/17/2025 10:03 PM
Changes: 06/05/2025 07:10 AM (57), 06/06/2025 06:13 AM (1), 06/06/2025 11:39 AM (38), 06/06/2025 06:08 PM (1), 09/17/2025 10:03 PM (11)
Complete: 🔍
Submitter: S0lidstat3
Cache ID: 244:A72:40

Submitinfo

Accepted

  • Submit #585069: Signal Signal Android App 7.41.4 (Current) Improper Authentication (by S0lidstat3)

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