Actively exploited unauth RCE (CVSS 10.0) in Joomla JCE ≤2.9.99.4 via profile import, now in CISA KEV. Patch to 2.9.99.7, then hunt rogue profiles and webshells.
RedSun (CVE-2026-41091) and UnDefend (CVE-2026-45498) are confirmed exploited and in CISA KEV. A patched Windows isn't enough: how to check your Defender engine 1.1.26040.8 / platform 4.18.26040.7.
NVD API queries: kernel CVEs return Analyzed but SuperAGI CVE-2026-6584 stays Deferred with no CPE. Maps Snyk, Trivy, Grype, Dependabot, OSV-Scanner reliance on NVD vs GHSA/OSV.
CVE-2026-34197 (CVSS 8.8), an RCE in Apache ActiveMQ Classic that lurked for 13 years, was added to the CISA KEV catalog. Authenticated attackers can achieve remote code execution via the Jolokia API. Affects versions below 5.19.4 and 6.0.0–6.2.2.
Microsoft's second-largest Patch Tuesday ever. SharePoint Server XSS zero-day (CVSS 6.5) confirmed in active exploitation and added to CISA KEV. Windows Defender BlueHammer LPE (CVSS 7.8) has a full public PoC. Also includes a wormable IKE RCE at CVSS 9.8.
CISA added 7 actively exploited vulnerabilities to the KEV catalog including FortiClient EMS SQL injection (CVSS 9.1). Federal deadline is April 16 for Fortinet, April 27 for the remaining six.
F5 BIG-IP APM vulnerability CVE-2025-53521, a CVSS 9.8 unauthenticated RCE, was added to CISA's KEV catalog. It had originally been classified as DoS, but was reclassified after a China-linked APT that compromised F5's network stole source code and vulnerability details. Federal agencies must respond by March 30, 2026.
Five vulnerabilities confirmed exploited by MuddyWater and DarkSword were added to the KEV catalog. Craft CMS is a CVSS 10.0 zero-day that has seen active exploitation since February, and Laravel Livewire is being used by MuddyWater against Middle East infrastructure.
Multiple severe RCE vulnerabilities were found in n8n's workflow expression evaluation. CVE-2025-68613 (CVSS 9.9) was added to CISA's KEV catalog and is confirmed to be actively exploited. Another unauthenticated issue, CVE-2026-27493 (CVSS 9.5), also requires immediate patching.
Four infrastructure-security stories from early March 2026: AI attack tool CyberStrikeAI compromising 600 FortiGates, Cloudflare's split detection/blocking WAF architecture, standardization of TLS Encrypted Client Hello, and CISA's KEV addition for VMware Aria Operations.
In the same week, CISA's KEV catalog gained a Chromium CSS engine UAF, a Roundcube RCE that hid for over a decade, a BeyondTrust RCE abused by ransomware, and a Dagu RCE due to no default authentication. All four require immediate patching.
