STAC4749

Microsoft Teams Vishing Campaign STAC4749 Deploys Chaos Ransomware

Do Son August 4, 2026

At a glance Actor STAC4749 (unattributed threat cluster) Activity Teams vishing, remote access, ransomware Targets Dozens of...

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CVE-2026-18577
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
Admin intelCISA KEV📅 Added to KEV: Aug 3, 2026📅 Updated: Aug 3, 2026
CVE-2026-18072CVSS 9.8
The Advanced Responsive Video Embedder for Rumble, Odysee, YouTube, Vimeo, Kick … plugin for WordPress is vulnerable to...
Admin intel📅 Updated: Jul 29, 2026
CVE-2026-20316CVSS 5.3
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated,...
CISA KEV📅 Added to KEV: Jul 29, 2026
CVE-2026-16812CVSS 10.0
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access...
Admin intelCISA KEV📅 Added to KEV: Jul 27, 2026📅 Updated: Jul 27, 2026
CVE-2025-68686CVSS 5.9
An Exposure of Sensitive Information to an Unauthorized Actor vulnerability [CWE-200] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.1,...
CISA KEV📅 Added to KEV: Jul 27, 2026
CVE-2026-16723CVSS 9.0
A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson\'s stock...
Admin intel📅 Updated: Jul 25, 2026
CVE-2026-16232CVSS 9.1
An authentication bypass vulnerability in the Check Point SmartConsole login process allows an unauthenticated remote attacker to obtain...
CISA KEV📅 Added to KEV: Jul 22, 2026
CVE-2026-50522CVSS 9.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Admin intelCISA KEV📅 Added to KEV: Jul 22, 2026📅 Updated: Jul 21, 2026

Critical Alert 1 Active Exploit Detected Today

Microsoft Teams Vishing Campaign STAC4749 Deploys Chaos Ransomware