CVE-2025-21477

Improper Input Validation in Modem

CVSS 7.5 HIGHEPSS 0.2%CWE-20

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Aug 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Transient DOS while processing CCCH data when NW sends data with invalid length.

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

Affected products

References