CVE Alert: CVE-2025-20191

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Vulnerability Summary: CVE-2025-20191

A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected Endpoints:

No affected endpoints listed.

Published Date:

5/7/2025, 6:15:39 PM

🔥 CVSS Score:

CVSS v3 Score: 7.4 (High)

Exploit Status:

Not Exploited

References:

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.


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