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CVE-2026-98432: Linux TCP Use-After-Free Risk and Patch Validation

A deep dive into China’s Volt Typhoon suggests it is preparing for an assault on infrastructure

In a deep dive into the Silent Train attack tactic used by China’s Volt Typhoon cybercrime group, Lumen’s Black Lotus Labs highlighted evidence of efforts to pre-position access within what it described as “strategic communications, critical infrastructure and other ecosystems that become essential during geopolitical tensions or crises.” The report, released on Wednesday, said that Silent Train is built around “rapi…

New Cisco firewall zero-day being actively exploited

A high-severity flaw in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance (ASA) and Cisco Secure Firewall Threat Defense (FTD) is under active exploitation to crash vulnerable devices. The vulnerability, tracked as CVE-2026-76418 and rated 8.6 in severity, is due to logic errors when secondary authentication is configured on a tunnel group, Cisco said in its advisory. It could all…

Suspected Chinese attackers built a custom PHP2Shell exploit and rooted 25 servers

Snoops 'likely still' have access to US government-affiliated network