Chinese state-linked hackers have exploited a zero-day vulnerability in VMware ESXi during espionage operations aimed at U.S. law firms, according to CrowdStrike’s latest assessment of threats affecting the legal sector. The activity is attributed to WARP PANDA, a China-nexus adversary that deployed malware in victims’ VMware vCenter environments. This series of intrusions, which continued into […]

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Apple has released updates for iOS 18.7.11 and iPadOS 18.7.11 to address three security vulnerabilities, including a CoreGraphics flaw connected to sophisticated targeted attacks. These updates were released on October 26, 2026, and also resolve information disclosure and unauthorized camera access issues affecting the Audio and CoreMedia components. The most significant vulnerability, tracked as CVE-2026-86950, […]

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Hackers are exploiting a command injection vulnerability (CVE-2026-73570) in the Zimbra Collaboration Suite. This vulnerability allows attackers to compromise internet-facing email servers without any user interaction. Microsoft Threat Intelligence has observed attackers deploying webshells, escalating privileges, collecting authentication secrets, and staging mailbox data across organizations in various regions and industries. Zimbra Zero-Click Flaw The “zero-click” […]

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Corelight researchers have disclosed a Windows Server vulnerability that lets attackers with network access crash affected systems with a single malicious DFS referral response. This vulnerability, tracked as CVE-2026-70111, affects Windows Server versions 2019, 2022, and 2025. According to Corelight’s disclosure on October 13, Microsoft addressed the flaw in its October 2026 updates. Notably, there […]

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Attackers chained three zero-day vulnerabilities in Ivanti Connect Secure (ICS) VPN appliances to execute commands as root without authentication, then searched the affected network for credentials and sensitive Active Directory data. Volexity attributed the activity to an unknown threat actor it tracks as UTA0576, which repeatedly exploited an appliance running version 22.8R2.4, Build 19097 the […]

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A third Chinese threat actor has been linked to phishing campaigns that cloned trusted websites and chained Chrome and Windows zero-day exploits to deploy a previously undocumented backdoor. The activity occurred on September 3 and 4, 2026, while the targeted vulnerabilities remained unpatched in Google Chrome. It followed Volexity’s September 9 disclosure that UTA0560 and […]

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A newly published proof-of-concept (PoC) called ShieldCrash reveals an unpatched vulnerability in Microsoft Defender that allows a local attacker to gain arbitrary file-read access in the SYSTEM context. This disclosure, attributed to the researcher known as MSNightmare, comes shortly after Microsoft addressed an elevation-of-privilege flaw in the Microsoft Malware Protection Engine, tracked as CVE-2026-69414, referred […]

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