cvedb.io
CVE-2022-20678
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2022-04-15T15:15:12.467 · Last modified 2026-06-17T04:24:50.410

Summary

A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.

Affected products

cisco — ios_xe

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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.