Signal App Biometric Authentication missing critical step in authentication

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Summary

CVECVE-2025-5715
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-06-06 04:15:55 UTC
Updated2026-04-29 01:00:01 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 0.3 LOW from [email protected]

CVSS:4.0/AV:P/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-304 | CWE-306 | CWE-304 Missing Critical Step in Authentication

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary0.3LOWCVSS:4.0/AV:P/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED1LOWCVSS:4.0/AV:P/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary3.8LOWCVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED3.8LOWCVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
3.0CNADECLARED3.8LOWCVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary3.5AV:L/AC:H/Au:S/C:P/I:P/A:P
2.0CNADECLARED3.5AV:L/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Physical
Attack Complexity
High
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:P/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Physical
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 Breakdown

Attack Vector
Physical
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Signal Signal 7.41.4 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Signal App affected 7.41.4 Not specified

References

ReferenceSourceLinkTags
drive.google.com/file/d/1tI0bC8X8546ActlzGlmSU-AhCdD950y4/view [email protected] drive.google.com Exploit
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
drive.google.com/file/d/1tI0bC8X8546ActlzGlmSU-AhCdD950y4/view 134c704f-9b21-4f2e-91b3-4a467353bcc0 drive.google.com Exploit
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
vuldb.com [email protected] vuldb.com Permissions Required, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: S0lidstat3 (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-06-05T00:00:00.000ZAdvisory disclosed
CNA2025-06-05T02:00:00.000ZVulDB entry created
CNA2025-06-05T07:10:40.000ZVulDB entry last update
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