Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

May 2023 Microsoft Security Updates

May 10, 2023
Reading Time: 1 min read
in Alerts
May 2023 Microsoft Security Updates

 

Microsoft’s May 2023 security updates have addressed a total of 40 vulnerabilities, including two zero-day flaws that were actively exploited in attacks. The vulnerabilities impact various Microsoft products such as Windows, Office, Microsoft Edge, SharePoint Server, Visual Studio, SysInternals, and Microsoft Teams.

Among the vulnerabilities addressed, seven are rated Critical and 31 are rated Important in severity. The two actively exploited zero-day vulnerabilities include a Win32k elevation of privilege vulnerability (CVE-2023-29336) and a Secure Boot security feature bypass vulnerability (CVE-2023-24932).

The Win32k vulnerability allows attackers to gain SYSTEM privileges and spread malware, while the Secure Boot vulnerability enables an attacker with physical or administrative access to install an affected boot policy and bypass Secure Boot. Threat actors were observed exploiting the latter flaw to install the BlackLotus UEFI bootkit.

In addition, Microsoft addressed other severe vulnerabilities, including a Windows Network File System Remote Code Execution vulnerability (CVE-2023-24941) and a Windows Pragmatic General Multicast (PGM) Remote Code Execution vulnerability (CVE-2023-24943). Furthermore, a remote code execution flaw in SharePoint Server (CVE-2023-24955) was also patched, which was demonstrated during the Pwn2Own Vancouver 2023 exploit contest.

Reference:
  • Win32k Elevation of Privilege Vulnerability
Tags: Cyber AlertCyber Alerts 2023May 2023MicrosoftUpdateVulnerabilitieszero-day vulnerability
ADVERTISEMENT

Related Posts

Gift Card Heist Via Cloud Hackers

Gift Card Heist Via Cloud Hackers

October 23, 2025
Gift Card Heist Via Cloud Hackers

Fake Zoom Calls Target Ukraine Aid

October 23, 2025
Gift Card Heist Via Cloud Hackers

MuddyWater Launches Global Spying

October 23, 2025
PolarEdge Expands Router Botnet

PolarEdge Expands Router Botnet

October 22, 2025
PolarEdge Expands Router Botnet

Google Finds New Russian Malware

October 22, 2025
PolarEdge Expands Router Botnet

Copilot Flaw Exposes Sensitive Data

October 22, 2025

Latest Alerts

Gift Card Heist Via Cloud Hackers

MuddyWater Launches Global Spying

Fake Zoom Calls Target Ukraine Aid

Copilot Flaw Exposes Sensitive Data

PolarEdge Expands Router Botnet

Google Finds New Russian Malware

Subscribe to our newsletter

    Latest Incidents

    Ransomware Hits Jewett Cameron

    Salt Typhoon Hacks European Telecom

    JFL Loses 800K Weekly After Hack

    Union Cyberattack Raises Concerns

    Romanian Prisoner Hacks Prison IT

    Hackers Claim Data On NSA Officials

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial