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CVE-2026-69361 Microsoft CVE debrief

A server-side request forgery (SSRF) vulnerability exists in Microsoft Exchange Server, allowing an authorized attacker to perform spoofing over a network. The CVE record was published on 2026-09-08T18:18:55.997Z and was last modified on 2026-09-29T20:20:52.450Z. The NVD entry is currently Analyzed. This SSRF vulnerability allows an attacker to make unauthorized requests on behalf of the server, potentially leading to security risks. Exchange Server administrators and security teams should be aware of this vulnerability and take necessary actions to prevent potential SSRF attacks. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM.

Vendor
Microsoft
Product
Microsoft Exchange Server 2016 Cumulative Update 23
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-29
Advisory published
2026-09-08
Advisory updated
2026-09-29

Who should care

Exchange Server administrators and security teams responsible for monitoring and patching Exchange Server installations should be aware of this vulnerability and take necessary actions to prevent potential SSRF attacks.

Why it matters

The SSRF vulnerability in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network, which can lead to potential security risks. Exchange Server administrators and security teams should prioritize verifying and applying patches, monitoring Exchange Server logs, and restricting access to authorized personnel only.

  • Verify and apply patches to prevent potential SSRF attacks
  • Monitor Exchange Server logs for potential SSRF attacks
  • Restrict access to Exchange Server for authorized personnel only

Technical summary

The SSRF vulnerability in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network by making unauthorized requests on behalf of the server. This can lead to potential security risks, including unauthorized data access or modification. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. To mitigate this vulnerability, administrators should prioritize verifying and applying patches to prevent potential SSRF attacks.

Defensive priority

Exchange Server administrators should prioritize verifying and applying patches to prevent potential SSRF attacks.

Recommended defensive actions

  • Verify and apply patches for Microsoft Exchange Server
  • Monitor Exchange Server logs for potential SSRF attacks
  • Restrict access to Exchange Server for authorized personnel only

Evidence notes

The CVE record and NVD detail page provide information on the SSRF vulnerability in Microsoft Exchange Server. The vendor advisory and patch information are available from Microsoft.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69361 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69361

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-69361 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69361

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.