cvedb.io
CVE-2025-20191
HIGH · CVSS 7.4
EPSS exploitation probability: 0%
Published 2025-05-07T18:15:39.110 · Last modified 2026-06-17T08:41:01.520

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.