// 1 ZERO-DAY · 3 CVE · 2 EXPLOIT IN THE LAST 24H→
CYBERSECZERO-DAY

YellowKey: Microsoft Issues Emergency Mitigations for BitLocker Bypass

Microsoft issued temporary mitigations on May 20 for CVE-2026-45585, a BitLocker bypass vulnerability exploited through the Windows Re…

May 25, 2026views - 471

CYBERSEC

CISA Adds Microsoft Defender DoS Flaw to KEV Catalog with June 3 Deadline

CISA has added CVE-2026-45498, a Denial of Service vulnerability in Microsoft Defender, to its Known Exploited Vulnerabilities catalog…

May 24, 2026views - 500

CYBERSECCVE

CVE-2026-41091: Microsoft Defender Engine Exploited for SYSTEM Privilege Escalation

A link-following vulnerability in the Microsoft Malware Protection Engine enables local privilege escalation to SYSTEM. An analysis of…

May 24, 2026views - 686

CYBERSECCRITICAL

May 2026 Patch Tuesday: 137 Flaws and the Domain Controller Threat

Microsoft's May 2026 security update addresses 137 vulnerabilities, including 31 critical flaws. While no zero-days were reported, una…

May 23, 2026views - 412

CYBERSECCRITICAL

Apple Patches macOS RCE Vulnerability in USD Library (ZDI-26-314)

A critical out-of-bounds write in the macOS USD library could allow remote code execution through malicious 3D files. Apple released a…

May 23, 2026views - 343

VULNZERO-DAY

macOS USD Library Bug ZDI-26-315 Exposes System Memory, Patch Issued May 12

Apple has addressed ZDI-26-315, an out-of-bounds read vulnerability in the macOS Universal Scene Description (USD) library. Rated CVSS…

May 23, 2026views - 346

phishing

M365 Phishing: How Kali365 and EvilTokens Bypass MFA Without Passwords

Two emerging Phishing-as-a-Service (PhaaS) platforms are leveraging device code phishing and OAuth consent abuse to hijack Microsoft 3…

May 22, 2026views - 956

malware

18 Malicious AI Extensions Exposed: Unit 42 Details Email Spying and RAT Risks

Palo Alto Networks Unit 42 has uncovered 18 AI browser extensions that masquerade as productivity tools while deploying RATs and spyin…

May 21, 2026views - 382

CYBERSEC

Chrome Internal Bug Reports Surge to 200+ as Google Leans on AI

Google addressed more than 200 internally discovered vulnerabilities in Chrome between March and May 2026. The spike aligns with the c…

May 21, 2026views - 393

CYBERSECZERO-DAY

Microsoft Defender Zero-Days Under Active Attack; CISA Mandates Patching by June 3

Microsoft has confirmed that two vulnerabilities in Microsoft Defender are being actively exploited in the wild. CISA has added both f…

May 21, 2026views - 490

microsoft

Microsoft Open-Sources RAMPART and Clarity to Secure AI Agent Workflows

Microsoft has unveiled two open-source security tools for AI agents: RAMPART, a Pytest-native framework for build-time testing, and Cl…

May 20, 2026views - 508

CYBERSEC

1Password and OpenAI Partner to Provide Just-in-Time Credentials for AI Agents

1Password integrates its Environments MCP Server into OpenAI's Codex, enabling just-in-time credentialing for AI coding agents to prev…

May 20, 2026views - 1.2k