U.S. CISA adds Cisco ISE and PaperCut NG/MF flaws to its Known Exploited Vulnerabilities catalog
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Cisco warns of max severity ISE zero-day exploited in attacks
Cisco patched CVE-2026-76460, a maximum-severity authentication bypass in Identity Services Engine actively exploited in attacks; CISA added it to KEV with a three-day federal deadline.
CVE-2026-76460 is a maximum-severity authentication bypass in an API endpoint of Cisco Identity Services Engine (ISE) and ISE-PIC, exploitable regardless of configuration, allowing attackers to access the web-based management interface. Cisco PSIRT confirmed active exploitation; no workarounds exist, and fixed releases are available for ISE 3.1 through 3.5, with re-imaging of suspect nodes recommended. CISA added the flaw to its Known Exploited Vulnerabilities Catalog and ordered federal agencies to patch within three days. Cisco also patched CVE-2026-76423 and five other critical ISE flaws (CVE-2026-20176, CVE-2026-20211, CVE-2026-20307, CVE-2026-20284) that are not yet flagged as exploited.
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Critical Patches Issued for Cisco Expressway Series, TelePresence VCS Products
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Cisco Issues Urgent Fix for Authentication Bypass Bug Affecting BroadWorks Platform
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January 2026 CVE Landscape: 23 Critical Vulnerabilities Mark 5% Increase, APT28 Exploits Microsoft Office Zero
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⚡ Weekly Recap: SharePoint 0-Day, Chrome Exploit, macOS Spyware, NVIDIA Toolkit RCE and More
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Cisco Patches Four Critical Identity Services, Webex Flaws Enabling Code Execution
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Active Exploitation Triggers Emergency Patch for Cisco ISE Zero-Day
Cisco urgently patched actively exploited zero-day CVE-2026-76460 (CVSS 10.0), an ISE authentication bypass enabling root command execution; CISA added it to KEV.
Cisco released emergency patches for CVE-2026-76460 (CVSS 10.0), a zero-day authentication bypass in an API endpoint of Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC), and confirmed active exploitation in the wild. Successful exploitation lets attackers bypass the web-based management interface and execute commands with root privileges, allowing them to hide or delete indicators of compromise. Fixed releases are ISE/ISE-PIC 3.5 Patch 4, 3.4 Patch 7, 3.3 Patch 12, 3.2 Patch 11, and 3.1 Patch 12; no workarounds exist beyond restricting traffic with infrastructure ACLs. CISA added the flaw to its Known Exploited Vulnerabilities catalog, giving US federal agencies three days to patch under BOD 26-04.
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CISA Warns of Exploited Vulnerabilities in Cisco Products
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Cisco fixed four critical flaws in Identity Services and Webex
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Cisco Warns of New Firewall Attack Exploiting CVE-2025-20333 and CVE-2025
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Week in review: Windows kernel flaw patched, suspected Fortinet FortiWeb zero-day exploited
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Beyond the Perimeter: Building Resilience Against Cloud and SaaS Supply-Chain Attacks
ShinyHunters exploited an Oracle PeopleSoft zero-day to steal data and extort roughly 100 organizations, including the Council of Europe, for up to $2.3M.
Between May and early June 2026, the ShinyHunters group exploited a critical zero-day in Oracle PeopleSoft across about 100 organizations and 300 instances worldwide, per reports cited by The Register. Stolen records included employee and student personal data, payroll, tax, financial and health information, plus immigration and passport documents. AgentCypher.ai estimates extortion demands of $400,000 to $2.3 million per victim, typically in Bitcoin; the Council of Europe refused to pay. The article uses the incident to argue for Zero Trust, supply-chain risk management, rapid patching, encrypted distributed backups and defined recovery-time objectives.
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