Security Alert – Cisco Zero-Day in IOS and IOS XE
- November 18, 2025
- Posted by: Chernor Jalloh
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Cisco has disclosed a high-severity vulnerability (CVE-2025-20352) in IOS and IOS XE software, actively exploited in the wild.
• Affects devices with SNMP enabled
• Exploitation can cause Denial of Service or lead to full system takeover (RCE as root)
• No workarounds – Cisco urges immediate patching
Action: Upgrade to the fixed software release without delay.