CVE-2025-20170: High severity cisco ios vulnerability
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 Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2025-20170?
The severity of CVE-2025-20170 is classified as a moderate risk, potentially leading to a denial-of-service condition.
How do I fix CVE-2025-20170?
To fix CVE-2025-20170, you should apply the latest security patches provided by Cisco for your IOS or IOS XE software.
What systems are affected by CVE-2025-20170?
CVE-2025-20170 affects devices running Cisco IOS Software and Cisco IOS XE Software.
Can CVE-2025-20170 be exploited remotely?
Yes, CVE-2025-20170 can be exploited remotely by an authenticated attacker.
What causes the vulnerability in CVE-2025-20170?
CVE-2025-20170 is caused by improper error handling during the parsing of SNMP requests.