CVE-2025-20174
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…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ios | Versions 15.2\(1\)sy, 15.2\(1\)sy0a, 15.2\(1\)sy1, 15.2\(1\)sy1a, 15.2\(1\)sy2, 15.2\(1\)sy3 |
| Cisco | Ios Xe | Versions 3.11.0s, 3.11.1s, 3.11.2s, 3.11.3s, 3.11.4s, 3.12.0as |