CRITICAL 9.8 Microsoft
CVE-2026-62878
Windows DNS Server Remote Code Execution Vulnerability
Microsoft Security Update 2026-Aug: Windows DNS Server Remote Code Execution Vulnerability
Affected Products
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
- Windows Server 2025 (Server Core installation)
- Windows Server 2025
- Windows Server 2016
- Windows Server 2016 (Server Core installation)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62878
- https://nvd.nist.gov/vuln/detail/CVE-2026-62878
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-08-11 via Microsoft. Affected: Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022 and 5 more.
Risk Timeline
CVE Disclosed2026-08-11 · 44 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62878NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-62878Related Vulnerabilities
| CVE | Title | Severity | CVSS |
|---|---|---|---|
| CVE-2026-68839 | Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability | CRITICAL | 9.8 |
| CVE-2026-69276 | Microsoft UxTheme Library (uxtheme.dll) Remote Code Execution Vulnerability | CRITICAL | 9.8 |
| CVE-2026-69408 | Microsoft Windows Media Foundation Remote Code Execution Vulnerability | CRITICAL | 9.8 |
| CVE-2026-69431 | Telnet Client Remote Code Execution Vulnerability | CRITICAL | 9.8 |
| CVE-2026-69463 | Windows NTFS Remote Code Execution Vulnerability | CRITICAL | 9.8 |
| CVE-2026-69491 | Microsoft DirectMusic Remote Code Execution Vulnerability | CRITICAL | 9.8 |
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