CVE-2026-69858
Windows DNS Server Remote Code Execution Vulnerability
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows DNS Server Remote Code Execution Vulnerability
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-69858- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-416
- Updated
- 2026-11-10
EUVDEUVD-2026-73636
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-73636- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-vrp7-ff8v-gvm9
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- Record
GHSA-vrp7-ff8v-gvm9- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-69858- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-69858 is a high vulnerability (CVSS 8.1) in Microsoft Windows Server 2022, published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. No source names a fixed version.