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CVE-2026-58544 Microsoft CVE debrief

CVE-2026-58544 is a high-severity vulnerability in Windows Management Services that allows an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7 and is classified as HIGH. Microsoft has released a patch for this vulnerability. The vulnerability is a use-after-free issue that can be exploited by an authorized attacker to gain elevated privileges. System administrators and security teams should be aware of this vulnerability and take necessary actions to mitigate it. The CVE record and NVD entry provide further details on the vulnerability.

Vendor
Microsoft
Product
Windows 11 Version 24H2
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-16
Advisory published
2026-07-14
Advisory updated
2026-07-16

Who should care

System administrators and security teams responsible for managing Windows systems should be aware of this vulnerability and take necessary actions to mitigate it. This includes applying the patch released by Microsoft, conducting a thorough inventory of affected systems, and implementing compensating controls to limit the attack surface. Additionally, security teams should monitor system logs for suspicious activity and consider implementing additional security measures to prevent privilege escalation.

Technical summary

The vulnerability is a use-after-free issue in Windows Management Services that allows an authorized attacker to elevate privileges locally. The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability affects Windows Management Services and has a CVSS score of 7, classified as HIGH. Microsoft has released a patch for this vulnerability, which should be applied as soon as possible. The vulnerability can be mitigated by implementing compensating controls to limit the attack surface and monitoring system logs for suspicious activity.

Defensive priority

High

Recommended defensive actions

  • Apply the patch released by Microsoft
  • Conduct a thorough inventory of affected systems
  • Implement compensating controls to limit the attack surface
  • Monitor system logs for suspicious activity
  • Consider implementing additional security measures to prevent privilege escalation

Evidence notes

The CVE record was published on 2026-07-14T18:18:42.400Z and was last modified on 2026-07-16T13:54:23.263Z. The NVD entry is currently Analyzed. This vulnerability affects Windows Management Services and has a CVSS score of 7, classified as HIGH. Microsoft has released a patch for this vulnerability. The evidence is based on the CVE record and NVD entry, which are considered reliable sources. However, the exact scope and impact of the vulnerability are limited by the information available in these sources.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-14T18:18:42.400Z and has not been modified since then. The NVD entry is currently Analyzed.