cvedb.io
CVE-2023-20080
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2023-03-23T17:15:14.797 · Last modified 2026-06-17T05:29:25.870

Summary

A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to insufficient validation of data boundaries. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly.

Affected products

cisco — ios

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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.