Microsoft Releases Emergency KB5089573 for Windows 11 to Permanently Fix Patch Tuesday Install Failures
Microsoft has released KB5089573, a critical out-of-band update for Windows 11, permanently fixing the EFI System Partition space issue that caused widespread 0x800f0922 installation failures following May 2026...
CVE-2026-0257: Palo Alto PAN-OS Authentication Bypass Actively Exploited — Patch Immediately
A critical authentication bypass in Palo Alto Networks PAN-OS (CVE-2026-0257) is being actively exploited in two distinct waves, with attackers forging GlobalProtect VPN session cookies to gain unauthorized...
BadHost (CVE-2026-48710): Critical Authentication Bypass Threatens Thousands of AI Agent Applications
A newly disclosed critical vulnerability dubbed 'BadHost' (CVE-2026-48710) enables attackers to bypass authentication in FastAPI and Starlette-based AI applications through manipulated HTTP Host headers. Thousands of LLM inference...
Critical 7-Zip Flaw CVE-2026-48095 (CVSS 8.8) Enables Arbitrary Code Execution via NTFS Vtable Hijack
A critical heap buffer overflow in 7-Zip 26.00 (CVE-2026-48095, CVSS 8.8) lets attackers execute arbitrary code through an NTFS vtable hijack. The attack works regardless of file extension...
CVE-2026-9256 “nginx-poolslip”: Critical NGINX Flaw Enables Unauthenticated DoS and Code Execution
A critical heap buffer overflow in the NGINX rewrite module (CVE-2026-9256, "nginx-poolslip") allows unauthenticated remote attackers to crash NGINX workers or execute code. Proof-of-concept activity is already circulating...
CISA Flags Actively Exploited Langflow Flaw CVE-2025-34291 — AI Workflow Deployments at Risk
CISA has added CVE-2025-34291, a critical CORS misconfiguration in the Langflow AI workflow platform, to its Known Exploited Vulnerabilities catalog, confirming active exploitation. Organizations using Langflow face the...
Ubiquiti Issues Emergency Patches for Five Critical UniFi OS Vulnerabilities, Three Rated Maximum CVSS 10.0
Ubiquiti Networks has released urgent firmware updates addressing five critical vulnerabilities in its UniFi OS platform, including three flaws rated CVSS 10.0 — the maximum severity score. The...
CISA Adds Two Actively Exploited Microsoft Defender Zero-Days to KEV Catalog — Patch by June 3
CISA has added two critical Microsoft Defender vulnerabilities — CVE-2026-45498 and CVE-2026-41091 — to its Known Exploited Vulnerabilities catalog following evidence of active exploitation in the wild. Federal...