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PatchSiren cyber security CVE debrief

CVE-2026-47655 Microsoft CVE debrief

CVE-2026-47655 is a MEDIUM-severity vulnerability (CVSS Score: 6.5) that involves the exposure of sensitive information to an unauthorized actor in Microsoft Graph. An authorized attacker can exploit this vulnerability to disclose information over a network. The vulnerability was published on 2026-06-04T23:17:32.530Z and last modified on 2026-06-05T14:59:51.620Z.

Vendor
Microsoft
Product
Microsoft Graph
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-23
Advisory published
2026-06-04
Advisory updated
2026-07-23

Who should care

Users of Microsoft Graph should be aware of this vulnerability and take necessary precautions to protect their sensitive information.

Technical summary

The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N and is classified under CWE-200. The vulnerability's status is Awaiting Analysis.

Defensive priority

MEDIUM

Recommended defensive actions

  • Review and apply patches from Microsoft as they become available.
  • Implement network segmentation and access controls to limit the attack surface.
  • Monitor and audit network activity for suspicious behavior.

Evidence notes

The vendor is identified as Unknown Vendor with low confidence, and the product name is not specified. However, there is evidence suggesting that the vendor might be Microsoft.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47655 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47655

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

  • CVE-2026-47655 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47655

    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.