What’s Vulnerable › Vulnerabilities
CVE-2026-26137: Microsoft Exchange Elevation of Privilege Vulnerability
- Severity: critical (CVSS 9.9 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: 2026-03-19 · updated 2026-06-19
- Weakness: CWE-918
Description
Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.
Affected products
- Microsoft 365 Copilot's Business Chat: all versions
- Microsoft Exchange Online: all versions
References
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