CRITICAL CWE-122
CVE-2026-41096
Windows DNS Client Remote Code Execution Vulnerability
Microsoft·Windows 11 version 23H2
9.8/ 10
CVSS 3.1
Critical severity
2.7%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 86% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
- Published
- May 12, 2026
- Updated
- Aug 10, 2026
- First covered
- Jun 29, 2026
- Latest story
- 5 months ago
Summary
Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.
CWE-122Heap-based Buffer Overflow
Attack profile
Attack vectorNetwork
ComplexityLow
PrivilegesNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CAffected products
- Microsoft Windows 11 version 23H210.0.22631.0 to before 10.0.22631.7079
- Microsoft Windows 11 Version 23H210.0.22631.0 to before 10.0.22631.7219
- Microsoft Windows 11 Version 24H210.0.26100.0 to before 10.0.26100.8457
- Microsoft Windows 11 Version 25H210.0.26200.0 to before 10.0.26200.8457
- Microsoft Windows 11 version 26H110.0.28000.0 to before 10.0.28000.2113
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.2330
- Microsoft Windows Server 202510.0.26100.0 to before 10.0.26100.32860
- Microsoft Windows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.32860