cvedb.io
CVE-2026-20124
HIGH · CVSS 7.7
EPSS exploitation probability: 0%
Published 2026-08-05T17:16:46.643 · Last modified 2026-08-05T18:16:56.347

Summary

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper error handling when parsing SNMP requests. This vulnerability affects all versions of SNMP — Versions 1, 2c, and 3. An attacker could exploit this vulnerability by sending a malformed SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly. The attacker must have the SNMPv1 or v2c read-only or read-write community string or valid SNMPv3 user credentials on the affected device.

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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.