CVE-2026-50495
DNS Client Tampering Vulnerability
CVE-2026-50495 is fixed in 19 products on 1 platform, first by KB5099538, released July 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.1
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0030
23rd percentile
<p>Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1809 for 32-bit Systems | 17763.9020 | KB5099538 | Jul 14, 2026 |
| Windows 10 Version 1809 for x64-based Systems | 17763.9020 | KB5099538 | Jul 14, 2026 |
| Windows 10 Version 21H2 for 32-bit Systems | KB5099539 | Jul 14, 2026 | |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5099539 | Jul 14, 2026 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5099539 | Jul 14, 2026 | |
| Windows 10 Version 22H2 for 32-bit Systems | KB5099539 | Jul 14, 2026 | |
| Windows 10 Version 22H2 for ARM64-based Systems | KB5099539 | Jul 14, 2026 | |
| Windows 10 Version 22H2 for x64-based Systems | KB5099539 | Jul 14, 2026 | |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5101650 | Jul 14, 2026 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5101650 | Jul 14, 2026 | |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5101650 | Jul 14, 2026 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5101650 | Jul 14, 2026 | |
| Windows 11 Version 26H1 for ARM64-based Systems | 28000.2525 | KB5101649 | Jul 14, 2026 |
| Windows 11 version 26H1 for x64-based Systems | 28000.2525 | KB5101649 | Jul 14, 2026 |
| Windows Server 2019 | 17763.9020 | KB5099538 | Jul 14, 2026 |
| Windows Server 2019 (Server Core installation) | 17763.9020 | KB5099538 | Jul 14, 2026 |
| Windows Server 2022 | 20348.5386 | KB5099540 | Jul 14, 2026 |
| Windows Server 2025 | 26100.33158 | KB5099536 | Jul 14, 2026 |
| Windows Server 2025 (Server Core installation) | 26100.33158 | KB5099536 | Jul 14, 2026 |
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