Cisco says attackers are exploiting CVE-2026-20349 in ASA and FTD, letting crafted HTTP requests trigger DoS via Remote Access SSL VPN.

Cisco is warning that a high-severity denial-of-service vulnerability in Secure Firewall ASA and Threat Defense (FTD) software is being actively exploited in attacks to remotely crash affected devices ...

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Cisco has rushed a patch for a brute-force denial-of-service (DoS) vulnerability in its VPN that's being actively exploited in the wild. The medium-severity bug (CVE-2024-20481, CVSS 5.8) resides in ...

Cisco warned customers today to patch two zero-day vulnerabilities that are actively being exploited in attacks and impact the company's firewall software. The first one (CVE-2025-20333) allows ...

I started out with a pretty simple network setup. A Cisco ASA 5510 and a bunch of PCs. All of the PCs are using the ASA as their default gateway. Now we've added a remote site across a T1. So we have ...

A pair of zero-day vulnerabilities affecting Cisco Adaptive Security Appliance devices have been exploited in attacks, prompting CISA to issue an ‘emergency directive’ Thursday. Cyberattacks that have ...

Cisco this week issued a notice that faulty clock timing chips in some of its switches, routers and security appliances could fail after about 18 months of service – causing those devices to crash and ...