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Cisco is warning that a critical Catalyst SD-WAN Controller authentication bypass flaw, tracked as CVE-2026-20182, was actively exploited in zero-day attacks that allowed attackers to gain administrative privileges on compromised devices. [...]
The critical CVE-2026-41940 authentication bypass vulnerability in cPanel, WHM, and WP Squared is being actively exploited in the wild and has been leveraged in attempts since late February. [...]
The authentication bypass flaw, tracked as CVE-2026-35616, is the latest in a series of Fortinet vulnerabilities that have been exploited in the wild.
A recently disclosed security flaw patched by Microsoft may have been exploited by the Russia-linked state-sponsored threat actor known as APT28, according to new findings from Akamai
A newly disclosed maximum-severity security flaw in Cisco Catalyst SD-WAN Controller (formerly vSmart) and Catalyst SD-WAN Manager (formerly vManage) has come under active exploitation in the wild as part of malicious activity that dates back to 2023
Cisco is warning that a critical authentication bypass vulnerability in Cisco Catalyst SD-WAN, tracked as CVE-2026-20127, was actively exploited in zero-day attacks that allowed remote attackers to compromise controllers and add malicious rogue peers to targeted networks. [...]
Fortinet has confirmed a new, actively exploited critical FortiCloud single sign-on (SSO) authentication bypass vulnerability, tracked as CVE-2026-24858, and says it has mitigated the zero-day attacks by blocking FortiCloud SSO connections from devices running vulnerable firmware versions. [...]
Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks
In addition to our Water Hydra APT zero day analysis, the Zero Day Initiative (ZDI) observed a DarkGate campaign which we discovered in mid-January 2024 where DarkGate operators exploited CVE-2024-21412.
Threat actors were actively exploiting CVE-2023-36025 in Windows SmartScreen as a zero-day vulnerability before Microsoft patched it in November.
Adobe released an emergency ColdFusion security update that fixes critical vulnerabilities, including a fix for a new zero-day exploited in attacks. [...]