CVE-2026-88218 Windows DNS Remote Code Execution Vulnerability
CriticalCVSS 9.8
- Published
- Updated
- Exploit status
- No public exploit known
Description
Double free in Windows DNS allows an unauthorized attacker to execute code over a network.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft windows 10 1607 | < 10.0.14393.9688 | 10.0.14393.9688 |
| Microsoft Windows Server 2016 | < 10.0.14393.9688 | 10.0.14393.9688 |
| Microsoft windows 10 1809 | < 10.0.17763.9487 | 10.0.17763.9487 |
| Microsoft Windows Server 2019 | < 10.0.17763.9487 | 10.0.17763.9487 |
| Microsoft windows 10 21h2 | < 10.0.19044.7846 | 10.0.19044.7846 |
| Microsoft windows 10 22h2 | < 10.0.19045.7846 | 10.0.19045.7846 |
| Microsoft Windows Server 2022 | < 10.0.20348.5870 | 10.0.20348.5870 |
| Microsoft windows 11 23h2 | < 10.0.22631.7711 | 10.0.22631.7711 |
| Microsoft windows 11 24h2 | < 10.0.26100.9974 | 10.0.26100.9974 |
| Microsoft windows 11 24h2 | < 10.0.26100.9911 | 10.0.26100.9911 |
| Microsoft windows 11 25h2 | < 10.0.26200.9974 | 10.0.26200.9974 |
| Microsoft windows 11 25h2 | < 10.0.26200.9911 | 10.0.26200.9911 |
| Microsoft windows 11 version 26h2 for arm64-based systems | < 10.0.26300.9974 | 10.0.26300.9974 |
| Microsoft windows 11 version 26h2 for arm64-based systems | < 10.0.26300.9911 | 10.0.26300.9911 |
| Microsoft windows 11 version 26h2 for x64-based systems | < 10.0.26300.9974 | 10.0.26300.9974 |
| Microsoft windows 11 version 26h2 for x64-based systems | < 10.0.26300.9911 | 10.0.26300.9911 |
| Microsoft Windows Server 2025 | < 10.0.26100.33822 | 10.0.26100.33822 |
| Microsoft Windows Server 2025 | < 10.0.26100.33730 | 10.0.26100.33730 |
| Microsoft windows 11 26h1 | < 10.0.28000.3501 | 10.0.28000.3501 |
| Microsoft Windows 10 Version 1607 | >= 10.0.14393.0, < 10.0.14393.9688 | 10.0.14393.9688 |
| Microsoft Windows 10 Version 1809 | >= 10.0.17763.0, < 10.0.17763.9487 | 10.0.17763.9487 |
| Microsoft Windows 10 Version 21H2 | >= 10.0.19044.0, < 10.0.19044.7846 | 10.0.19044.7846 |
| Microsoft Windows 10 Version 22H2 | >= 10.0.19045.0, < 10.0.19045.7846 | 10.0.19045.7846 |
| Microsoft Windows 11 version 23H2 | >= 10.0.22631.0, < 10.0.22631.7711 | 10.0.22631.7711 |
| Microsoft Windows 11 Version 24H2 | >= 10.0.26100.0, < 10.0.26100.9974 | 10.0.26100.9974 |
Show 10 more
| Microsoft Windows 11 Version 25H2 | >= 10.0.26200.0, < 10.0.26200.9974 | 10.0.26200.9974 |
| Microsoft Windows 11 version 26H1 | >= 10.0.28000.0, < 10.0.28000.3501 | 10.0.28000.3501 |
| Microsoft Windows 11 Version 26H2 | >= 10.0.26300.0, < 10.0.26300.9974 | 10.0.26300.9974 |
| Microsoft Windows Server 2016 | >= 10.0.14393.0, < 10.0.14393.9688 | 10.0.14393.9688 |
| Microsoft Windows Server 2016 (Server Core installation) | >= 10.0.14393.0, < 10.0.14393.9688 | 10.0.14393.9688 |
| Microsoft Windows Server 2019 | >= 10.0.17763.0, < 10.0.17763.9487 | 10.0.17763.9487 |
| Microsoft Windows Server 2019 (Server Core installation) | >= 10.0.17763.0, < 10.0.17763.9487 | 10.0.17763.9487 |
| Microsoft Windows Server 2022 | >= 10.0.20348.0, < 10.0.20348.5870 | 10.0.20348.5870 |
| Microsoft Windows Server 2025 | >= 10.0.26100.0, < 10.0.26100.33822 | 10.0.26100.33822 |
| Microsoft Windows Server 2025 (Server Core installation) | >= 10.0.26100.0, < 10.0.26100.33822 | 10.0.26100.33822 |
References
- MSRC Security Update Guide patch vendor-advisory
- KB5131291 patch
- KB5131291 vendor-advisory
- KB5131085 patch
- KB5131085 vendor-advisory
- KB5131096 patch
- KB5131096 vendor-advisory
- KB5131090 patch
- KB5131090 vendor-advisory
- KB5131087 patch
- KB5131087 vendor-advisory
- KB5132061 patch
- KB5132061 vendor-advisory
- KB5132043 vendor-advisory
- KB5131080 patch
- KB5131080 vendor-advisory
- KB5131077 vendor-advisory
- KB5132059 patch
- KB5132059 vendor-advisory