Patch Tuesday – April 2026


Microsoft is publishing 167 vulnerabilities on April 2026 Patch Tuesday. Microsoft is aware of exploitation in the wild for one of today’s vulnerabilities, and public disclosure for one other. Microsoft evaluates 19 of the vulnerabilities published today as more likely to see future exploitation.

So far this month, Microsoft has provided patches to address 80 browser vulnerabilities, which are not included in the Patch Tuesday count above. Regular Patch Tuesday watchers will know that these vulnerability totals are significantly higher than usual, especially the browser numbers. Late last week, Microsoft published patches to resolve more than 60 browser vulnerabilities in a single day, which is a new record in that very specific category.

Read more…
Source: Rapid7


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • VMWare vCenter Server CVE-2024-38812 DCERPC Vulnerability

    October 23, 2024

    CVE-2024-38812 is a critical heap-overflow vulnerability identified in VMware vCenter Server’s implementation of the DCERPC (Distributed Computing Environment/Remote Procedure Call) protocol. This flaw allows a malicious actor with network access to the vCenter Server to send specially crafted packets, potentially leading to remote code execution (RCE). The vulnerability, classified under CWE-122 (Heap-based Buffer Overflow), arises when ...

  • Code Injection in Spring Cloud: CVE-2024-37084

    October 18, 2024

    The SonicWall Capture Labs threat research team became aware of the threat CVE-2024-37084, assessed its impact, and developed mitigation measures for this vulnerability. CVE-2024-37084 is a critical vulnerability affecting Spring Cloud Data Flow versions 2.11.0 through 2.11.3. A malicious user with access to the Skipper server API can exploit a flaw in the upload request process, ...

  • New macOS vulnerability, “HM Surf”, could lead to unauthorized data access

    October 17, 2024

    Microsoft Threat Intelligence uncovered a macOS vulnerability that could potentially allow an attacker to bypass the operating system’s Transparency, Consent, and Control (TCC) technology and gain unauthorized access to a user’s protected data. The vulnerability, which we refer to as “HM Surf”, involves removing the TCC protection for the Safari browser directory and modifying a configuration ...

  • Gatekeeper Bypass: Uncovering Weaknesses in a macOS Security Mechanism

    October 17, 2024

    Unit 42 researchers have found that certain third-party utilities and applications pertaining to archiving, virtualization and Apple’s native command-line tools do not enforce the quarantine attribute. This can pose a threat to the integrity of a security feature on macOS known as Gatekeeper, which is responsible for ensuring that only trusted software runs on the system. ...

  • Cyber Security Association of China calls for cybersecurity review of Intel products sold in China

    October 16, 2024

    The Cyber Security Association of China on Wednesday called for the launch of a systematic review of potential cybersecurity risks in Intel products due to frequent vulnerabilities and high failure rates, in order to effectively safeguard China’s national security and the legitimate rights and interests of Chinese consumers. The association cited four reasons for the review: ...

  • Tor Browser and Firefox users should update to fix actively exploited vulnerability

    October 16, 2024

    Mozilla has announced a security fix for its Firefox browser which also impacts the closely related Tor Browser. The new version fixes one critical security vulnerability which is reportedly under active exploitation. To address the flaw, both Mozilla and Tor recommend that users update their browsers to the most current versions available. Firefox users that have ...