Topic: spam quarantine
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Cisco Warns of Chinese Hackers Using New Zero-Day
Cisco warns of an active, state-sponsored hacking campaign exploiting a critical zero-day vulnerability in its security appliances, allowing complete device takeover with no patch currently available. The flaw targets specific Cisco AsyncOS products, but exploitation requires a non-default config...
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Cisco Patches Critical Zero-Day Flaw in AsyncOS (CVE-2025-20393)
Cisco has patched a critical zero-day vulnerability (CVE-2025-20393) in its Email Security and Web Manager appliances, which was actively exploited by suspected state-sponsored actors. The flaw allowed unauthenticated attackers to execute root-level commands via a flaw in the Spam Quarantine feat...
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Cisco Email Security Appliances Hacked via Unpatched Zero-Day
A critical zero-day vulnerability (CVE-2025-20393) in Cisco email security appliances is being exploited, allowing attackers to gain full control, particularly when a non-default Spam Quarantine feature is exposed to the internet. Attackers have installed a sophisticated toolkit for persistent, s...
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