Cisco IOS XE Software SNMP Denial of Service Vulnerability
At a glance
Severity
HIGH 7.7
EPSS
EPSS 0.50 % · percentile 43 (2026-10-28)
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed
Description
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.
