Microsoft issued an emergency patch for a high-severity zero-day vulnerability in Office that allows attackers to bypass document security checks and is being exploited in the wild via malicious files.
Microsoft pushed the emergency patch for the zero‑day, tracked as CVE-2026-21509, and classified it as a “Microsoft Office Security Feature Bypass Vulnerability” with a CVSS score of 7.8 out of 10. The flaw allows attackers to bypass Object Linking and Embedding (OLE) mitigations that are designed to block unsafe COM/OLE controls inside Office documents. This means a malicious attachment could infect a PC despite built-in protections.
Read more…
Source: Malwarebytes Labs
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Progress Software Releases Critical Security Updates for MOVEit Transfer and MOVEit Gateway
June 26, 2024
Progress (formerly Ipswitch) has released a security update for two critical vulnerabilities found in the SFTP module of the MOVEit Transfer (CVE-2024-5806) and MOVEit Gateway (CVE-2024-5805) applications. MOVEit is a managed secure file transfer tool. The improper authentication vulnerability known as CVE-2024-5806 has a CVSSv3 score of 9.1 and can lead to authentication bypass in MOVEit ...
- London Hospitals Knew of Cyber Vulnerabilities Years Before Hack
June 14, 2024
A group of London hospitals struggling to contain the fallout from a cyberattack against a critical supplier had known for years about weaknesses that left them vulnerable to hacks, according to documents reviewed by Bloomberg News. The Guy’s and St Thomas’ NHS Foundation Trust, which runs five major hospitals in the London area, has failed to ...
- Cinterion EHS5 3G UMTS/HSPA Module Research
June 13, 2024
Modems play an important role in enabling connectivity for a wide range of devices. This includes not only traditional mobile devices and household appliances, but also telecommunication systems in vehicles, ATMs and Automated Process Control Systems (APCS). When integrating the modem, many product developers do not think of protecting their device from a potential modem compromise. ...
- Ransomware Attackers May Have Used Privilege Escalation Vulnerability as Zero-day
June 12, 2024
The Cardinal cybercrime group (aka Storm-1811, UNC4393), which operates the Black Basta ransomware, may have been exploiting a recently patched Windows privilege escalation vulnerability as a zero-day. The vulnerability (CVE-2024-26169) occurs in the Windows Error Reporting Service. If exploited on affected systems, it can permit an attacker to elevate their privileges. The vulnerability was patched on ...
- Microsoft Security Bulletin Coverage for June 2024
June 11, 2024
Microsoft’s June 2024 Patch Tuesday has 49 vulnerabilities, 24 of which are Elevation of Privilege. The SonicWall Capture Labs threat research team has analyzed and addressed Microsoft’s security advisories for the month of June 2024 and has produced coverage for seven of the reported vulnerabilities. Read more… Source: Sonicwall Sign up for our Newsletter Related:
- QR code SQL injection and other vulnerabilities in a popular biometric terminal
June 11, 2024
Biometric scanners offer a unique way to resolve the conflict between security and usability. They help to identify a person by their unique biological characteristics – a fairly reliable process that does not require the user to exert any extra effort. Yet, biometric scanners, as any other tech, have their weaknesses. This article touches on biometric ...