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Microsoft Update Intelligence

Administrator notices from Microsoft, summarised: what changed, and what you should do.

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CVE-2026-96185: Microsoft Exchange Online Remote Code Execution Vulnerability

A critical vulnerability in Microsoft Exchange Online allows authorized attackers to execute code over the network via a stack-based buffer overflow.

What you should do

Apply the security update as soon as possible to mitigate the vulnerability. AI-suggested

Microsoft 365 / Office · msrc Original Microsoft announcement ↗
Details

Original Microsoft text

Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.

Severity
Critical · CVSS 7.5
Type
Security updates
Services
Exchange Online
Tags
Microsoft Exchange Online, Remote Code Execution, 2026-Oct
AI analysis
Critical priority · generated by qwen2.5:7b · possibly affects Exchange Online · verify against the original
Review Recommended

CVE-2026-70571: Microsoft Exchange Server Remote Code Execution Vulnerability

A critical security vulnerability in Microsoft Exchange Server allows remote code execution, which could be exploited by unauthorized attackers.

What you should do

Apply the security update as soon as possible to mitigate the risk of remote code execution. AI-suggested

Microsoft 365 / Office · msrc Original Microsoft announcement ↗
Details

Original Microsoft text

Stack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

Severity
Critical · CVSS 8.1
Type
Security updates
Services
Exchange Online
Tags
Microsoft Exchange Server, Remote Code Execution, 2026-Oct
AI analysis
Critical priority · generated by qwen2.5:7b · possibly affects Exchange Online · verify against the original
Review Recommended

CVE-2026-65801: Microsoft Exchange Online Elevation of Privilege Vulnerability

A critical vulnerability in Microsoft Exchange Online allows unauthorized attackers to perform server-side request forgery and potentially elevate privileges over a network.

What you should do

Apply the security update as soon as possible to mitigate the vulnerability. AI-suggested

Microsoft 365 / Office · msrc Original Microsoft announcement ↗
Details

Original Microsoft text

Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.

Severity
Critical · CVSS 10.0
Type
Security updates
Services
Exchange Online
Tags
Microsoft Exchange Online, Elevation of Privilege, 2026-Aug
AI analysis
Critical priority · generated by qwen2.5:7b · possibly affects Exchange Online · verify against the original