VulnerabilityDeferred

CVE-2025-43916

An authorization code may be sent to an attacker-controlled destination.

LOW 3.4EPSS 0.21%

Does this matter?

Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.

Description

Sonos api.sonos.com through 2025-04-21, when the /login/v3/oauth endpoint is used, accepts a redirect_uri containing userinfo in the authority component, which is not consistent with RFC 6819 section 5.2.3.5. An authorization code may be sent to an attacker-controlled destination. This might have further implications in conjunction with "Decompiling the app revealed a hardcoded secret."

CVSS 3.1: 3.4 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N
EPSS: 0.21% probability · 11th percentile
CISA KEV: Not listed
Weakness: CWE-647
Source: cve@mitre.org

References

https://github.com/larlarua/vulnerability-reports/blob/main/CVE-2025-43916/detail.md

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.