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CVE detail

CVE-2026-66802

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to execute code over a network.

CVSS 8.1 · HighBuzz score 32.0

Buzz score

Why this CVE is surfacing

Buzz score total 32.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 19.5 · diversity 12.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
19.5
6 evidence mentions in the snapshot
Diversity score
12.5
6 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
6
within the 30d window
Peak daily
5
highest bucket

Evidence

Source links by recency

Newest mentions first
6 source links · newest first
  • August 2026 Patch Tuesday: One Exploited Zero-Day and 62 Critical Vulnerabilities Among 415 CVEsCrowdStrike

    affected by August 2026 Patch Tuesday Exploited Zero-Day Vulnerability in Windows Ancillary Function Driver for WinSock CVE-2026-68820 is an Important elevation of privilege vulnerability affecting the Windows Ancillary Function Driver for WinSock and has a CVSS score of 7.0 . A use-after-free flaw (CWE-416) allows a low-privileged local attacker to el

    vendorwww.crowdstrike.comAug 12, 2026, 8:00 AM
  • Microsoft Patch Tuesday for August 2026 — Snort rules and prominent vulnerabilitiesCisco Talos

    arked as "critical." Microsoft notes that 1 of the vulnerabilities disclosed this month have been exploited in the wild CVE-2026-68820 is an elevation of privilege vulnerability affecting Windows Ancillary Function Driver for WinSock. A Use After Free vulnerability could allow an authorized attacker to elevate privileges locally. This vulnerability has

    vendorblog.talosintelligence.comAug 11, 2026, 10:21 PM
  • Microsoft and Adobe Patch Tuesday, August 2026 Security Update ReviewQualys

    ation denial-of-service, and arbitrary code execution. Zero-day Vulnerabilities Patched in August Patch Tuesday Edition CVE-2026-72971: Windows Container Isolation FS Filter Driver (unionfs.sys) Tampering Vulnerability This is a link-following flaw that may allow an authenticated attacker to perform local tampering. CVE-2026-62832: Windows User Profile

    vendorblog.qualys.comAug 11, 2026, 9:55 PM
  • Patch Tuesday - August 2026Rapid7

    ktop browser security patches so far this month. SharePoint: critical RCE chain by Rapid7 Today sees the publication of CVE-2026-63520 , a high-severity remote code execution in Microsoft SharePoint. Discovered by Rapid7 Senior Principal Security Researcher Stephen Fewer , and published today in coordination with Microsoft; this vulnerability is the se

    vendorwww.rapid7.comAug 11, 2026, 9:10 PM
  • The August 2026 Security Update ReviewZero Day Initiative

    g actively exploited, at least as 0-days. Again, we’ll start with the bug under active attack and move on from there. - CVE-2026-68820 - Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This bug allows attackers to execute code at SYSTEM level. Bugs of this type are often paired with code execution bugs to take over a

    vendorwww.thezdi.comAug 11, 2026, 5:56 PM
  • CVE-2026-66802 Windows Device Health Attestation (DHA) Remote Code Execution VulnerabilityMicrosoft MSRC

    Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to execute code over a network.

    vendormsrc.microsoft.comAug 11, 2026, 2:00 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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  • CVE-2026-62729

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