What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-22 · updated 2026-10-31
• Weakness: CWE-121

Description

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

Affected products

• Microsoft Exchange Online: all versions

In the news

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

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96185

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