CVE-2026-96176
Windows DNS Denial of Service Vulnerability
CVE-2026-96176 is a high vulnerability (CVSS 7.5) in Microsoft Windows 11 Version 23h2, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. No source names a fixed version.
- Severity
- 7.5 HighCVSS 3.1, CVE List
- Exploit chance
- 1.20%EPSS, 68th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Windows DNS Denial of Service Vulnerability
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.
- Record
CVE-2026-96176- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-401
- Updated
- 2026-11-10
EUVDEUVD-2026-121498
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.
- Record
EUVD-2026-121498- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-11
GitHub AdvisoriesGHSA-qm28-7v56-2r6m
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker...
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.
- Record
GHSA-qm28-7v56-2r6m- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-401
- Updated
- 2026-11-10
NVD
Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.
- Record
CVE-2026-96176- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-401
- Updated
- 2026-11-11
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.