A stack-overflow SNMP zero-day in Cisco IOS/IOS XE (CVE-2025-20352) enables remote code execution or DoS; about two million internet-exposed devices may be vulnerable.
Cisco Warns of Actively Exploited SNMP Vulnerability Allowing RCE or DoS in IOS Software
High-severity SNMP stack overflow (CVE-2025-20352) in Cisco IOS/IOS XE enables remote code execution or DoS when attacker has specific SNMP and administrative credentials.
Cisco Patches Zero-Day Flaw Affecting Routers and Switches
A critical SNMP stack overflow (CVE-2025-20352) in IOS/IOS XE is being exploited; apply Cisco patches immediately to prevent DoS or remote root code execution.
