Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws
Today is Microsoft’s April 2025 Patch Tuesday, which includes security updates for 134 flaws, including one actively exploited zero-day vulnerability. This Patch Tuesday also fixes eleven “Critical” vulnerabilities, all remote code execution vulnerabilities. The number of bugs in each vulnerability category is listed below: The above numbers do not include Mariner flaws and 13 Microsoft […]
Microsoft: Windows CLFS zero-day exploited by ransomware gang
Microsoft says the RansomEXX ransomware gang has been exploiting a high-severity zero-day flaw in the Windows Common Log File System to gain SYSTEM privileges on victims’ systems. The vulnerability, tracked as CVE-2025-29824, was patched during this month’s Patch Tuesday and was only exploited in a limited number of attacks. CVE-2025-29824 is due to a use-after-free weakness that lets […]
Windows 10 KB5055518 update fixes random text when printing
Microsoft has released the KB5055518 cumulative update for Windows 10 22H2 and Windows 10 21H2, with nine changes or fixes. The Windows 10 KB5055518 update is mandatory as it contains Microsoft’s April 2025 Patch Tuesday security updates, which fix six actively exploited zero-day vulnerabilities. Windows users can install this update by going into Settings, clicking on Windows Update, and manually performing […]
Windows 11 KB5055523 & KB5055528 cumulative updates released
Microsoft has released Windows 11 KB5055523 and KB5055528 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues. Today’s updates are mandatory as they contain the April 2025 Patch Tuesday security patches for vulnerabilities discovered in previous months. Windows 11 users can install today’s update by going to Start > Settings > Windows Update and clicking on ‘Check for Updates.’ You can also manually download and install the […]
Hackers lurked in Treasury OCC’s systems since June 2023 breach
Unknown hackers who breached the Treasury’s Office of the Comptroller of the Currency (OCC) in June 2023 gained access to over 150,000 emails, according to anonymous sources familiar with the matter. The OCC is an independent bureau of the U.S. Department of the Treasury that oversees banks and federal savings associations and ensures they comply […]
WhatsApp flaw can let attackers run malicious code on Windows PCs
Meta warned Windows users to update the WhatsApp messaging app to the latest version to patch a vulnerability that can let attackers execute malicious code on their devices. Described as a spoofing issue and tracked as CVE-2025-30401, this security flaw can be exploited by attackers by sending maliciously crafted files with altered file types to potential […]
New Mirai botnet behind surge in TVT DVR exploitation
A significant spike in exploitation attempts targeting TVT NVMS9000 DVRs has been detected, peaking on April 3, 2025, with over 2,500 unique IPs scanning for vulnerable devices. The attacks attempt to exploit an information disclosure vulnerability first disclosed by an SSD Advisory in May 2024, which published the full exploitation details on retrieving admin credentials in cleartext using […]
AWS rolls out ML-KEM to secure TLS from quantum threats
Amazon Web Services (AWS) has added support for the ML-KEM post-quantum key encapsulation mechanism to AWS Key Management Service (KMS), AWS Certificate Manager (ACM), and AWS Secrets Manager, making TLS connections more secure. ML-KEM (Module-Lattice-based Key Encapsulation Mechanism) is a post-quantum cryptographic algorithm designed to secure key exchanges from the perceived, yet still theoretical threat of […]
EncryptHub’s dual life: Cybercriminal vs Windows bug-bounty researcher
EncryptHub, a notorious threat actor linked to breaches at 618 organizations, is believed to have reported two Windows zero-day vulnerabilities to Microsoft, revealing a conflicted figure straddling the line between cybercrime and security research. The reported vulnerabilities are CVE-2025-24061 (Mark of the Web bypass) and CVE-2025-24071 (File Explorer spoofing), which Microsoft addressed during the March 2025 Patch Tuesday updates, acknowledging the […]
Microsoft delays WSUS driver sync deprecation indefinitely
Microsoft announced today that, based on customer feedback, it will indefinitely delay removing driver synchronization in Windows Server Update Services (WSUS). “Seeing how many of you are already moving to the available cloud-based driver services, we initially proposed the removal of WSUS driver synchronization. Thanks to your feedback, especially on disconnected device scenarios, we’ve now […]