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The Hacker News

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Fortinet Fixes Critical FortiSIEM Flaw Allowing Unauthenticated Remote Code Execution

Fortinet has released updates to fix a critical security flaw impacting FortiSIEM that could allow an unauthenticated attacker to achieve code execution on susceptible instances. The operating system (OS) injection vulnerability, tracked as CVE-2025-64155, is rated 9.4 out of 10.0 on the CVSS scoring system. "An improper neutralization of special elements used in an OS command (...


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New Research: 64% of 3rd-Party Applications Access Sensitive Data Without Justification

Research analyzing 4,700 leading websites reveals that 64% of third-party applications now access sensitive data without business justification, up from 51% in 2024.  Government sector malicious activity spiked from 2% to 12.9%, while 1 in 7 Education sites show active compromise. Specific offenders: Google Tag Manager (8% of violations), Shopify (5%), Facebook Pixel (4%). ...


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Microsoft Fixes 114 Windows Flaws in January 2026 Patch, One Actively Exploited

Microsoft on Tuesday rolled out its first security update for 2026, addressing 114 security flaws, including one vulnerability that it said has been actively exploited in the wild. Of the 114 flaws, eight are rated Critical, and 106 are rated Important in severity. As many as 58 vulnerabilities have been classified as privilege escalation, followed by 22 information disclosure, ...


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Critical Node.js Vulnerability Can Cause Server Crashes via async_hooks Stack Overflow

Node.js has released updates to fix what it described as a critical security issue impacting "virtually every production Node.js app" that, if successfully exploited, could trigger a denial-of-service (DoS) condition. "Node.js/V8 makes a best-effort attempt to recover from stack space exhaustion with a catchable error, which frameworks have come to rely on for service availabili...


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PLUGGYAPE Malware Uses Signal and WhatsApp to Target Ukrainian Defense Forces

The Computer Emergency Response Team of Ukraine (CERT-UA) has disclosed details of new cyber attacks targeting its defense forces with malware known as PLUGGYAPE between October and December 2025. The activity has been attributed with medium confidence to a Russian hacking group tracked as Void Blizzard (aka Laundry Bear or UAC-0190). The threat actor is believed to be active si...


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