What is CVE-2025-20189?

CVE-2025-20189 is a high-severity vulnerability in Cisco Asr_903, classified under CWE-762. CVSS score: 7.4/10. Published 2025-05-07.

How severe is CVE-2025-20189?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Cisco Asr_903

CVE-2025-20189

A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an unauthenticated, adjacent attacker to trigger a deni…

EPSS: 0.002 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Cisco Asr_903
Cisco Ios Xe Software — versions 3.16.0S, 3.16.1S, 3.16.1aS
Cisco Ios_xe — versions 3.16.0cs, 3.16.0s, 3.16.1as

Weakness classification (CWE)

CWE-762

References

psirt@cisco.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20189?: CVE-2025-20189 is a high-severity vulnerability in Cisco Asr_903, classified under CWE-762. CVSS score: 7.4/10. Published 2025-05-07.
How severe is CVE-2025-20189?: High severity. CVSS v3 base score is 7.4 out of 10.