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Zero-Day Alert: Thousands of Cisco IOS XE Systems Now Compromised

Just a day after Cisco disclosed CVE-2023-20198, it remains unpatched, and one vendor says a Shodan scan shows at least 10,000 Cisco devices with an implant for arbitrary code execution on them. The vendor meanwhile has updated the advisory with more mitigation steps.

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VPN Attacks Surged in First Quarter

But volume of malware, botnet, and other exploit activity declined because of the Emotet botnet takedown.

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Xen Patches ‘Worst’-Ever Virtual Machine Escape Vulnerability

Bug remained undetected for seven years and enabled complete control of host system.

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Backdoored Business Routers An Emerging Threat

Discovery of malicious implants in 14 Cisco routers, "tip of iceberg" FireEye researchers say.