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CVE-2026-58613 Microsoft CVE debrief

CVE-2026-58613 is a high-severity vulnerability in Windows Cloud Files Mini Filter Driver. An authorized attacker can exploit this use-after-free vulnerability to elevate privileges locally. The vulnerability exists due to improper handling of memory in the Windows Cloud Files Mini Filter Driver. Microsoft has released a patch for this vulnerability, and system administrators should apply it as soon as possible. However, the specific details of the patch and the affected systems are limited.

Vendor
Microsoft
Product
Windows 10 Version 1809
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-22
Advisory published
2026-07-14
Advisory updated
2026-07-22

Who should care

System administrators and users of Windows 10, Windows 11, and Windows Server systems should be aware of this vulnerability and apply the patch as soon as possible. Additionally, security teams and vulnerability management teams should review the vulnerability and assess the risk to their organization. The vulnerability has a high severity score, and exploitation could lead to significant impact.

Technical summary

The vulnerability exists in the Windows Cloud Files Mini Filter Driver and is caused by a use-after-free error. An attacker with local access can exploit this vulnerability to gain elevated privileges. The vulnerability affects Windows 10, Windows 11, and Windows Server systems. Microsoft has released a patch for this vulnerability, but the specific details of the patch are limited. Further verification is needed to confirm the scope of the vulnerability and the effectiveness of the patch.

Defensive priority

High

Recommended defensive actions

  • Apply the patch released by Microsoft
  • Ensure that all Windows systems are up-to-date with the latest security patches
  • Monitor system logs for suspicious activity
  • Implement additional security measures such as multi-factor authentication and least privilege access
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-14T18:18:44.007Z and was last modified on 2026-07-16T20:09:40.260Z. The NVD entry is currently Analyzed. This vulnerability affects Windows 10, Windows 11, and Windows Server systems. Microsoft has released a patch for this vulnerability. However, the specific details of the patch and the affected systems are limited. Further verification is needed to confirm the scope of the vulnerability and the effectiveness of the patch.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58613 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58613

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

  • CVE-2026-58613 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58613

    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.