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deserialization vulnerability

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A deserialization vulnerability occurs when an application deserializes untrusted data without proper validation, potentially allowing an attacker to execute arbitrary code. On WindowsForum.com, discussions cover real-world examples such as CVE-2026-26114 in Microsoft SharePoint Server, a high-severity remote code execution flaw in on-premises SharePoint; CVE-2026-25166 in the Windows Assessment and Deployment Kit (ADK), specifically in Windows System Image Manager (WSIM); and CVE-2026-21226 in the Azure SDK for Python, affecting the azure-core library. These threads provide patch guidance, severity details, and mitigation steps for IT administrators and developers managing Windows and Azure environments.
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    CVE-2026-50649: Update .NET 8.0.29 to Fix Code Execution

    Microsoft has patched CVE-2026-50649, a high-severity .NET vulnerability that can allow an attacker to execute code after a victim processes maliciously constructed data. The flaw was disclosed on July 14, 2026, with fixes delivered through .NET 8.0.29, .NET 9.0.18, .NET 10.0.10, updated Visual...
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    • .net security cve 2026 50649 deserialization vulnerability visual studio updates
    • Replies: 0
    • Forum: Security Alerts
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    March 2026 Patch Fixes SharePoint CVE-2026-26114 Deserialization RCE

    Microsoft released a security update on March 10, 2026 that closes a high‑severity remote code execution (RCE) vulnerability in on‑premises Microsoft SharePoint Server tracked as CVE‑2026‑26114; the flaw is a deserialization of untrusted data issue that could allow an attacker with low...
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    • cve 2026 26114 deserialization vulnerability on prem patch sharepoint security
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-25166 WSIM Deserialization in Windows ADK Patch Guide

    Microsoft has added CVE‑2026‑25166 to its Security Update Guide for the Windows Assessment and Deployment Kit (ADK), identifying a deserialization flaw in Windows System Image Manager (WSIM) that can lead to remote code execution — in practice, a local attacker with low‑privilege access can...
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    • deserialization vulnerability imaging deployment patch management windows wsim security
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-21226: High Severity Azure Core Deserialization RCE in Python SDK

    Microsoft’s public tracking and ecosystem signals identify the remote code execution (RCE) risk in the Azure SDK for Python as CVE‑2026‑21226 — a deserialization vulnerability in the azure‑core shared client library that Microsoft and multiple independent trackers classify as high severity and...
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    • azure core azure sdk python cve 2026 21226 deserialization vulnerability
    • Replies: 0
    • Forum: Security Alerts
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