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CVE-2026-62748 Microsoft CVE debrief

CVE-2026-62748 is a race condition vulnerability in Windows Telephony Service, allowing an authorized attacker to elevate privileges locally. The vulnerability's CVSS score is 7, indicating high severity. It was published on 2026-08-11 and is categorized under CWE-362 and CWE-416. Limited details are available due to the NVD entry being Undergoing Analysis. System administrators and security teams, especially those with high-risk exposure, should prioritize monitoring and patching. Verify and apply patches once available, monitor for unusual activity, restrict access to sensitive resources, and conduct thorough inventory checks. The CVE record has not been modified since publication.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-08-16
Advisory published
2026-08-11
Advisory updated
2026-08-16

Who should care

System administrators and security teams responsible for Windows systems, especially those with high-risk exposure or where local access could be a concern, should prioritize monitoring and patching efforts for this vulnerability.

Technical summary

CVE-2026-62748 is a race condition vulnerability in Windows Telephony Service. An authorized attacker can exploit this vulnerability to elevate privileges locally. The vulnerability's CVSS score is 7, indicating a high severity. The CWE identifiers for this vulnerability are CWE-362 and CWE-416.

Defensive priority

This vulnerability allows an authorized attacker to elevate privileges locally, indicating a high risk for systems where an attacker may already have local access. Immediate attention is advised to verify and apply patches.

Recommended defensive actions

  • Verify and apply patches from the vendor once available.
  • Monitor systems for unusual activity indicative of exploitation.
  • Restrict access to sensitive resources and implement compensating controls.
  • Conduct thorough inventory checks to identify potentially affected systems.

Evidence notes

The CVE-2026-62748 record indicates a race condition vulnerability in Windows Telephony Service, allowing an authorized attacker to elevate privileges locally. The NVD entry is currently Undergoing Analysis. Limited details are available, and further investigation is required to fully understand the vulnerability's impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-62748 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-62748

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

  • CVE-2026-62748 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62748

    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.