Cisco ASA Zero-Day Exploited in State-Espionage Campaign

Cisco ASA Zero-Day Exploited in State-Espionage Campaign

First seen 17 Dec 2025, 18:55 UTC •CisecurityCrnFilestore.FortinetSecurityboulevardCsa.Sg+18 •65% similarity •50.0

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Cisco disclosed a state-espionage campaign targeting its Adaptive Security Appliances (ASA), which are used for firewall and VPN functions. Attackers exploited two zero-day vulnerabilities to infiltrate government entities globally, deploying custom malware backdoors named 'Line Runner' and 'Line Dancer' to alter configurations and conduct reconnaissance.

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