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CVE-2026-48567 Microsoft CVE debrief

CVE-2026-48567 is a critical vulnerability in Azure HorizonDB that allows an unauthorized attacker to elevate privileges over a network. The vulnerability has a CVSS score of 10 and a severity of CRITICAL. It was published on 2026-06-04T23:17:32.677Z and modified on 2026-06-05T16:30:23.133Z.

Vendor
Microsoft
Product
Azure HorizonDB
CVSS
CRITICAL 10
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 Azure HorizonDB should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability is caused by an authentication bypass by spoofing in Azure HorizonDB. This allows an unauthorized attacker to elevate privileges over a network.

Defensive priority

high

Recommended defensive actions

  • Apply patches or updates provided by the vendor as soon as possible. [ref-4](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48567)

Evidence notes

The vulnerability is confirmed by the vendor and has been analyzed by the NVD.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48567 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48567

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

  • CVE-2026-48567 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48567

    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.