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NVD Vulnerability Details :
CVE-2026-26137
Modified
More InfoOfficial Page
Source-secure@microsoft.com
View Known Exploited Vulnerability (KEV) details
Published At-19 Mar, 2026 | 21:17
Updated At-27 Mar, 2026 | 23:17

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.19.9CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Type: Secondary
Version: 3.1
Base score: 9.9
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
CPE Matches
Microsoft Corporation
microsoft
>>365_copilot_chat>>-
cpe:2.3:a:microsoft:365_copilot_chat:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-918Secondarysecure@microsoft.com
CWE ID: CWE-918
Type: Secondary
Source: secure@microsoft.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26137secure@microsoft.com
Vendor Advisory
Hyperlink: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26137
Source: secure@microsoft.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found