Auth bypass in Signal App
CVE-2025-5715
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.
EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Signal App — versions 7.41.4
- Signal — versions 7.41.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, exploit)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit)
Frequently asked questions
- What is CVE-2025-5715?
- CVE-2025-5715 is a low-severity vulnerability in Signal App, classified under Missing Critical Step in Authentication. CVSS score: 3.8/10. Published 2025-06-06.
- How severe is CVE-2025-5715?
- Low severity. CVSS v3 base score is 3.8 out of 10.
- Is CVE-2025-5715 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.