CVE-2026-50487
Windows DNS Client Elevation of Privilege Vulnerability
Use after free in Microsoft Windows DNS allows an unauthorized attacker to elevate privileges 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 Client Elevation of Privilege Vulnerability
Use after free in Microsoft Windows DNS allows an unauthorized attacker to elevate privileges over a network.
- Record
CVE-2026-50487- 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
- 2026-11-02
EUVDEUVD-2026-44098
Use after free in Microsoft Windows DNS allows an unauthorized attacker to elevate privileges over a network.
- Record
EUVD-2026-44098- 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
- 2026-11-02
GitHub AdvisoriesGHSA-5fc8-2988-xmjx
Use after free in Microsoft Windows DNS allows an unauthorized attacker to elevate privileges...
Use after free in Microsoft Windows DNS allows an unauthorized attacker to elevate privileges over a network.
- Record
GHSA-5fc8-2988-xmjx- 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 Microsoft Windows DNS allows an unauthorized attacker to elevate privileges over a network.
- Record
CVE-2026-50487- 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 - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/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 |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-50487 is a high vulnerability (CVSS 8.1) in Microsoft Windows 11 Version 24h2, published July 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. No source names a fixed version.