CVE-2025-20169

A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper error handling when parsing SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.  This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMP v2c or earlier, the attacker must know a valid read-write or read-only SNMP community string for the affected system. To exploit this vulnerability through SNMP v3, the attacker must have valid SNMP user credentials for the affected system.

• cisco ios 12.2\(1\) • cisco ios 12.2\(1\)dx • cisco ios 12.2\(1\)dx1 • cisco ios 12.2\(1\)m0 • cisco ios 12.2\(1\)mb1 • cisco ios 12.2\(1\)xd • cisco ios 12.2\(1\)xd1 • cisco ios 12.2\(1\)xd2 • cisco ios 12.2\(1\)xd3 • cisco ios 12.2\(1\)xd4 • cisco ios 12.2\(1\)xe • cisco ios 12.2\(1\)xe1 • cisco ios 12.2\(1\)xe2 • cisco ios 12.2\(1\)xf • cisco ios 12.2\(1\)xf1 • cisco ios 12.2\(1\)xs • cisco ios 12.2\(1\)xs1a • cisco ios 12.2\(1\)xs2 • cisco ios 12.2\(1a\) • cisco ios 12.2\(1a\)xc • cisco ios 12.2\(1a\)xc1 • cisco ios 12.2\(1a\)xc2 • cisco ios 12.2\(1a\)xc3 • cisco ios 12.2\(1b\) • cisco ios 12.2\(1b\)da • cisco ios 12.2\(1b\)da1 • cisco ios 12.2\(1c\) • cisco ios 12.2\(1d\) • cisco ios 12.2\(2\)b • cisco ios 12.2\(2\)b1 • cisco ios 12.2\(2\)b2 • cisco ios 12.2\(2\)b3 • cisco ios 12.2\(2\)b4 • cisco ios 12.2\(2\)b5 • cisco ios 12.2\(2\)b6 • cisco ios 12.2\(2\)b7 • cisco ios 12.2\(2\)bx • cisco ios 12.2\(2\)bx1 • cisco ios 12.2\(2\)by • cisco ios 12.2\(2\)by1 • cisco ios 12.2\(2\)by2 • cisco ios 12.2\(2\)by3 • cisco ios 12.2\(2\)dd • cisco ios 12.2\(2\)dd1 • cisco ios 12.2\(2\)dd2 • cisco ios 12.2\(2\)dd3 • cisco ios 12.2\(2\)dd4 • cisco ios 12.2\(2\)dx3 • cisco ios 12.2\(2\)xa • cisco ios 12.2\(2\)xa1 • cisco ios 12.2\(2\)xa2 • cisco ios 12.2\(2\)xa3 • cisco ios 12.2\(2\)xa4 • cisco ios 12.2\(2\)xa5 • cisco ios 12.2\(2\)xb1 • cisco ios 12.2\(2\)xb2 • cisco ios 12.2\(2\)xb3 • cisco ios 12.2\(2\)xb5 • cisco ios 12.2\(2\)xb6 • cisco ios 12.2\(2\)xb7 … and 3336 more