CVE-2025-20257 Cisco Secure Network Analytics API Authorization Vulnerability

Medium 6.5 Published 21 May 2025 Updated 21 May 2025

Low-privileged authenticated attackers can bypass API authorization to create fraudulent findings and false alarms in Cisco Secure Network Analytics.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-20257?

CVE-2025-20257 is a medium-severity missing authorization vulnerability in Cisco Secure Network Analytics, published on 21 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in an API subsystem of Cisco Secure Network Analytics Manager and Cisco Secure Network Analytics Virtual Manager could allow an authenticated, remote attacker with low privileges to generate fraudulent findings that are used to generate alarms and alerts on an affected product. Thi vulnerability is due to insufficient authorization enforcement on a specific API. An attacker could exploit this vulnerability by authenticating as a low-privileged user and performing API calls with crafted input. A successful exploit could allow the attacker to obfuscate legitimate findings in analytics reports or create false indications with alarms and alerts on an affected device.

Weakness: CWE-863

Which versions are affected by CVE-2025-20257?

It affects 1 product.

Products include Cisco Secure Network Analytics.

How do I fix CVE-2025-20257?

No fix has been published for CVE-2025-20257 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-20257 being exploited?

There is no known exploitation of CVE-2025-20257 in the wild and no public exploit code.

Sources

Also known as GHSA-g6hf-3766-f3gv.