CVE-2026-45659—Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability

漏洞名称

Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability

描述

Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker to execute code over a network.

已知用于勒索软件活动吗？

勒索软件状态：

KNOWN

采集行动

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

其他说明

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659
• BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
• Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
• https://nvd.nist.gov/vuln/detail/CVE-2026-45659

相关新闻文章

• Hackers leverage new Microsoft SharePoint exploit in attacksAugust 12, 2026
• CISA: Microsoft SharePoint flaw now exploited in ransomware attacksAugust 11, 2026
• Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoCJuly 21, 2026
• CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEVJuly 17, 2026
• Researcher Drops New Windows Zero-Day PoC Hours After Microsoft Patch TuesdayJuly 15, 2026

相关 CWE

• CWE-502