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CVE-2026-26137
CRITICAL9.9
Description
Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.
CVE Details
CVSS v3.1 Score9.9
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published3/19/2026
Last Modified3/27/2026
Sourcenvd
Honeypot Sightings0
Affected Products
microsoft:365_copilot_chat
Weaknesses (CWE)
CWE-918
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26137(secure@microsoft.com)
IOC Correlations
No correlations recorded
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