Stay ahead of emerging threats with expert analysis from 95+ security articles, vulnerability reports, and cybersecurity insights — updated daily with the latest CVEs, threat actor campaigns, and security advisories. This week (Apr 21-25, 2026): a FIRESTARTER backdoor survives Cisco firewall patches in the ArcaneDoor federal breach, Microsoft ships a CVSS 9.1 ASP.NET Core flaw that lets attackers forge authentication cookies on Linux, three Microsoft Defender zero-days chain into SYSTEM takeover with two still unpatched, and Apple patches an iOS notification bug the FBI used to pull deleted Signal messages off an iPhone.
Critical Veeam Backup flaw lets attackers delete backup repos without credentials. Ransomware gangs exploiting CVE-2026-29849 to eliminate recovery options.
CISA confirmed active exploitation of CVE-2017-7921 (Hikvision cameras) and CVE-2021-22681 (Rockwell Automation controllers), both CVSS 9.8. Federal agencies must patch by March 26, 2026. Legacy vulnerabilities remain potent weapons in attacker arsenals.
Read moreCISA added CVE-2026-22719 (CVSS 8.1) to the Known Exploited Vulnerabilities catalog after confirming active exploitation. The command injection flaw in VMware Aria Operations allows unauthenticated RCE. Federal agencies must patch by March 24, 2026.
Read moreAkamai confirms APT28 (Fancy Bear/GRU) was actively exploiting CVE-2026-21513 (CVSS 8.8) in the MSHTML Framework before Microsoft's February patch. The attack uses crafted LNK files to bypass Mark-of-the-Web and execute malicious payloads as trusted local content.
Read moreAkamai confirmed APT28 exploited CVE-2026-21513 (CVSS 8.8) in Windows MSHTML before Microsoft's February patch. The attack uses crafted LNK files to bypass Mark-of-the-Web and IE Enhanced Security via ShellExecuteExW invocation. Samples linked to APT28 infrastructure appeared on VirusTotal two weeks before the fix.
Read moreShadowserver reports 900+ Sangoma FreePBX instances worldwide remain infected with web shells exploiting CVE-2025-64328 (CVSS 8.6). The INJ3CTOR3 threat actor deploys EncystPHP web shells for command execution and fraudulent outbound calls. US leads with 401 compromised systems.
Read moreZscaler ThreatLabz discovered ScarCruft (APT37) running the "Ruby Jumper" campaign that bridges air-gapped networks using weaponized USB drives. The operation abuses Zoho WorkDrive for C2 and deploys multiple malware families including THUMBSBD, FOOTWINE, and BLUELIGHT for surveillance and data exfiltration.
Read moreCisco disclosed CVE-2026-20127 (CVSS 10.0), an authentication bypass in Catalyst SD-WAN that sophisticated threat actor UAT-8616 has exploited since 2023. The attack chain creates rogue peers, downgrades software to exploit older CVEs, and achieves root persistence. CISA issued Emergency Directive 26-03 requiring 24-hour patching.
Read moreFormer L3Harris contractor Peter Williams sentenced to 87 months for selling eight zero-day exploits to Russian broker Operation Zero for $4 million. The U.S. government simultaneously sanctioned Operation Zero, its leader Sergey Zelenyuk, and connected entities for acquiring cyber tools harmful to national security.
Read moreAnthropic revealed that DeepSeek, Moonshot AI, and MiniMax ran industrial-scale distillation attacks using 24,000 fraudulent accounts to systematically extract Claude's reasoning, coding, and agentic capabilities across 16 million exchanges. Google disclosed similar attacks on Gemini weeks earlier.
Read moreAmazon Threat Intelligence reveals a Russian-speaking actor with limited skills compromised 600+ FortiGate devices using DeepSeek and Claude. The campaign exploited exposed management interfaces and weak credentials, demonstrating how AI has democratized sophisticated attack capabilities.
Read moreAmazon Threat Intelligence documents a Russian-speaking threat actor who compromised 600+ FortiGate devices across 55 countries using AI-assisted tools. No zero-days were exploited—just exposed management interfaces and weak credentials, with generative AI helping an unsophisticated attacker scale their operations.
Read moreUnit 42 documents active exploitation of CVE-2026-1731 (CVSS 9.9) in BeyondTrust Remote Support and PRA. Attackers are deploying web shells, VShell, Spark RAT, and exfiltrating PostgreSQL dumps. CISA confirms ransomware campaigns are leveraging this vulnerability.
Read moreESET researchers discovered PromptSpy, an Android malware that uses Google's Gemini AI to dynamically navigate device interfaces and maintain persistence. The malware sends screen captures to Gemini, which responds with tap instructions, effectively solving Android fragmentation for attackers.
Read moreA maximum-severity zero-day in Dell RecoverPoint for Virtual Machines (CVSS 10.0) has been exploited by Chinese state-sponsored hackers since mid-2024. The flaw involves hard-coded Tomcat credentials enabling root access. CISA has added it to the KEV catalog with a 3-day patch deadline.
Read moreFour of the most popular VS Code extensions with over 125 million combined installs contain critical vulnerabilities that could let attackers steal files, execute code, and compromise entire organizations from a developer workstation. Three remain unpatched.
Read moreGoogle released emergency updates to patch CVE-2026-2441, a high-severity use-after-free vulnerability in Chrome's CSS handling that attackers are actively exploiting. All Chromium-based browsers are affected.
Read moreGoogle patches CVE-2026-2441, a high-severity use-after-free in Chrome actively exploited in the wild. This is Chrome first zero-day of 2026. Update immediately.
Read moreA critical pre-authentication RCE vulnerability in BeyondTrust Remote Support and Privileged Remote Access is now being actively exploited after a proof-of-concept was published. With a CVSS of 9.9 and approximately 8,500 unpatched on-premise deployments exposed, organizations must patch immediately.
Read moreMultiple coordinated campaigns have compromised millions of Chrome users through fake AI assistants, social media tools, and utility extensions. The AiFrame campaign alone infected 300,000 users with fake ChatGPT and Gemini extensions that steal emails and credentials, while 287 extensions with 37 million installs were found exfiltrating browsing history to data brokers.
Read moreOur CyberOne MobileAssess platform performs deep static analysis, source code decompilation, and runtime security testing for iOS and Android apps. From one-time assessments to year-long continuous testing, we find what surface-level scanners miss.
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