CVE-2026-113856

CVE Enrichment

CVSS: 7.8 HIGH
CISA KEV: Not listed

Description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 11-Nov-2026 02:19
Last Modified: 11-Nov-2026 03:17
CWE: CWE-122

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:H /
                            PR:L /
                            UI:N /
                            S:C /
                            C:H /
                            I:H /
                            A:H

CNA Products / Version Status

Microsoft · Windows 10 Version 21H2 Source: CNA · [email protected]
Default status: unknown

10.0.19044.0 ≤ version < 10.0.19044.7846 — affected (custom)

Platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
Microsoft · Windows 10 Version 22H2 Source: CNA · [email protected]
Default status: unknown

10.0.19045.0 ≤ version < 10.0.19045.7846 — affected (custom)

Platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 Version 23H2 Source: CNA · [email protected]
Default status: unknown

10.0.22631.0 ≤ version < 10.0.22631.7711 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows 11 Version 24H2 Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.9974 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 Version 25H2 Source: CNA · [email protected]
Default status: unknown

10.0.26200.0 ≤ version < 10.0.26200.9974 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 Version 26H2 Source: CNA · [email protected]
Default status: unknown

10.0.26300.0 ≤ version < 10.0.26300.9974 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 version 23H2 Source: CNA · [email protected]
Default status: unknown

10.0.22631.0 ≤ version < 10.0.22631.7711 — affected (custom)

Platforms: ARM64-based Systems
Microsoft · Windows 11 version 26H1 Source: CNA · [email protected]
Default status: unknown

10.0.28000.0 ≤ version < 10.0.28000.3501 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows Server 2022 Source: CNA · [email protected]
Default status: unknown

10.0.20348.0 ≤ version < 10.0.20348.5870 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2025 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.33822 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2025 Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.33822 — affected (custom)

Platforms: x64-based Systems

References

[email protected]

Last enrichment sync: 11-Nov-2026 16:13
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2026-113753, CVE-2026-113856, and CVE-2026-113860 all enable elevation of privilege within the hypervisor boundary. Microsoft's November 2026 Patch Tuesday Fixes 1,252 Vulnerabilities, Including Exploited Outlook Zero-Day

CVE (14)

MITRE ATT&CK (7)

Vendors (1)

Products (10)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.