About the security content of Safari 26.3

About the security content of Safari 26.3 This document describes the security content of Safari 26.3. About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available...

CVE-2026-21513

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network...

CVE-2026-21513

CVE-2026-21513 is a security feature bypass vulnerability in the MSHTML Framework. Affected component: MSHTML/MSHTML Framework used by Windows’ browsing/rendering stack. Root cause details are described in vendor advisories and security blogs as a protection mechanism bypass that can be triggered...

CVE-2025-27708

The CVE-2025-27708 entry describes an out-of-bounds read in Intel CSME firmware (Ring 0) that may allow information disclosure. A local attacker with privileged user rights and high attack complexity could expose data without user interaction, with confidentiality impact High and no integrity/ava...

Web-Exploit-Engine

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Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Google Chrome

Affected Software: Google Chrome prior to version 121.0.6167.8...

PT-2026-7295

Name of the Vulnerable Software and Affected Versions IntelR Converged Security and Management Engine CSME Firmware FW affected versions not specified Description An out-of-bounds read issue exists in the firmware within Ring 0: Kernel, potentially allowing information disclosure. A system softwa...

KB5075904: Windows 10 version 1809 / Windows Server 2019 Security Update (February 2026)

The remote Windows host is missing security update 5075904. It is, therefore, affected by multiple vulnerabilities - Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. CVE-2026-21513 - Access of resource using incompatible...

KB5077179: Windows 11 Version 26H1 Security Update (February 2026)

The remote Windows host is missing security update 5077179. It is, therefore, affected by multiple vulnerabilities - Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. CVE-2026-21513 - Access of resource using incompatible...

Intel Converged Security and Management Engine（CSME） 缓冲区错误漏洞

The Intel Converged Security and Management Engine CSME is a security management engine developed by Intel Corporation in the United States. The Intel Converged Security and Management Engine Firmware contains a buffer overflow vulnerability, which stems from out-of-bounds reads, potentially...

Intel Chipset Firmware February 2026 Security Update

Intel has informed HP of potential security vulnerabilities in some Intel® Converged Security and Management Engine Intel® CSME, some Intel® Active Management Technology Intel® AMT, and some Intel® Standard Manageability, which might allow denial of service or information disclosure. Intel is...

UBUNTU-CVE-2026-25918

unity-cli is a command line utility for the Unity Game Engine. Prior to 1.8.2 , the sign-package command in @rage-against-the-pixel/unity-cli logs sensitive credentials in plaintext when the --verbose flag is used. Command-line arguments including --email and --password are output via...

firefox: thunderbird: Use-after-free in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine component...

firefox: thunderbird: Use-after-free in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine component...

CVE-2026-1868

GitLab AI Gateway’s Duo Workflow Service was affected by an insecure template expansion defect in Duo Agent Platform Flow definitions across all 18.1.6–18.8.0 releases. The vulnerability could enable Denial of Service or remote code execution on the Gateway. Mitigation in the listed advisories is...

firefox: thunderbird: Use-after-free in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine component...

firefox: thunderbird: Use-after-free in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine component...

CVE-2026-25731

A flaw was found in Calibre, an e-book manager. This Server-Side Template Injection SSTI vulnerability in Calibre's Templite templating engine allows an attacker to achieve arbitrary code execution. This occurs when a user converts an ebook using a specially crafted malicious custom template file...

CVE-2026-25647

Lute is a structured Markdown engine supporting Go and JavaScript. Lute 1.7.6 and earlier as used in SiYuan before has a Stored Cross-Site Scripting XSS vulnerability in the Markdown rendering engine. An attacker can inject malicious JavaScript into a Markdown text/note. When another user clicks...

Fedora 43 : chromium (2026-db342a4417)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-db342a4417 advisory. Update to 144.0.7559.132 CVE-2026-1861: Heap buffer overflow in libvpx CVE-2026-1862: Type Confusion in V8 Tenable has extracted the preceding...