Cyber Resilience

CVE-2026-41096

Critical

Published: 12 May 2026

Published
12 May 2026
Modified
15 May 2026
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0193 77.5th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-41096 is a critical-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows 11 23H2. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 22.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.

CWE(s)
CWE-122

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
Why these techniques?

Remote heap buffer overflow enabling unauthenticated RCE against Windows DNS service directly maps to exploitation of public-facing apps and remote services.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-62456Same product: Microsoft Windows 11 23H2
CVE-2026-24283Same product: Microsoft Windows 11 24H2
CVE-2025-47981Same product: Microsoft Windows 11 23H2
CVE-2025-49672Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49669Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49753Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49729Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49674Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49663Same product: Microsoft Windows Server 2022 23H2
CVE-2025-49668Same product: Microsoft Windows Server 2022 23H2

Affected Assets

microsoft
windows 11 23h2
≤ 10.0.22631.7079 · ≤ 10.0.22631.7079
microsoft
windows 11 24h2
≤ 10.0.26100.8390 · ≤ 10.0.26100.8390
microsoft
windows 11 25h2
≤ 10.0.26200.8390 · ≤ 10.0.26200.8390
microsoft
windows 11 26h1
≤ 10.0.28000.2113 · ≤ 10.0.28000.2113
microsoft
windows server 2022 23h2
≤ 10.0.25398.2330
microsoft
windows server 2025
≤ 10.0.26100.32772

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References