Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-21244 Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. https://www.cve.org/CVERecord?id=CVE-2026-21244
Post summary
The text announces CVE‑2026‑21244, a heap‑based buffer overflow in Windows Hyper‑V that permits local code execution by an authorized attacker, without mentioning any PoC, exploit, active exploitation, patch, or false‑positive claim.
15 of 15 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | microsoft | windows_10_1607 | - | - | x64 |
| OS | microsoft | windows_10_1809 | - | - | x64 |
| OS | microsoft | windows_10_21h2 | - | - | x64 |
| OS | microsoft | windows_10_22h2 | - | - | x64 |
| OS | microsoft | windows_11_23h2 | - | - | arm64 |
| OS | microsoft | windows_11_23h2 | - | - | x64 |
| OS | microsoft | windows_11_24h2 | - | - | arm64 |
| OS | microsoft | windows_11_24h2 | - | - | x64 |
| OS | microsoft | windows_11_25h2 | - | - | arm64 |
| OS | microsoft | windows_11_25h2 | - | - | x64 |
| OS | microsoft | windows_server_2016 | - | - | - |
| OS | microsoft | windows_server_2019 | - | - | - |
| OS | microsoft | windows_server_2022 | - | - | - |
| OS | microsoft | windows_server_2022_23h2 | - | - | - |
| OS | microsoft | windows_server_2025 | - | - | - |