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PatchSiren cyber security CVE debrief

CVE-2026-48574 Microsoft CVE debrief

CVE-2026-48574 is a heap-based buffer overflow vulnerability in Windows Media. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. An unauthorized attacker can exploit this vulnerability to execute code locally.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of affected Microsoft Windows versions should apply patches to prevent local code execution.

Technical summary

The vulnerability is caused by a heap-based buffer overflow in Windows Media. The CVSS vector is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a local attack vector with low attack complexity and no privileges required.

Defensive priority

High

Recommended defensive actions

  • Apply patches from Microsoft as soon as possible.
  • See ${ref-4} for vendor advisory and mitigation guidance.

Evidence notes

The CVE record ${cve-org} and NVD detail ${nvd} provide additional information on this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48574 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48574

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

  • CVE-2026-48574 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48574

    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.