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Microsoft’s Emergency .NET Fixes: Brotli Buffer Overflow and Linux Tarball Ownership Vulnerabilities
Cybersecurity

Microsoft’s Emergency .NET Fixes: Brotli Buffer Overflow and Linux Tarball Ownership Vulnerabilities

Microsoft has released out-of-band security updates for .NET to address a critical Brotli decompression buffer overflow and unsafe ownership metadata in Linux .NET tarballs. Published October 25, 2026, the fixes cover .NET 8, .NET 9, .NET 10, and .NET 11 Release Candidate 3 and complete remediation for issues that were not fully resolved in the October 13 updates. Microsoft urges administrators and development teams to apply these updates as soon…

Saugata Datta3 min read161
Microsoft .NET Out-of-Bounds Read (CVE-2026-26127) Causes Remote Denial-of-Service Risk
Cybersecurity

Microsoft .NET Out-of-Bounds Read (CVE-2026-26127) Causes Remote Denial-of-Service Risk

Microsoft has issued an emergency security update to address a newly disclosed vulnerability in the .NET ecosystem that can be triggered remotely and results in denial-of-service (DoS) conditions. The flaw, tracked as CVE-2026-26127, affects multiple .NET runtime and package versions across Windows, macOS, and Linux. Administrators and developers should prioritize applying the available patches to prevent service disruption. What the vulnerability is CVE-2026-26127 is an out-of-bounds read vulnerability (CWE-125). An…

Saugata Datta3 min read739
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