CVE-2026-20876Medium· 6.7▾ SunlitHeap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 36.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
0.5% → 0.5%
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
windows_11_23h2 < 10.0.22631.6491windows_11_24h2 < 10.0.26100.7623windows_11_25h2 < 10.0.26200.7623windows_server_2022_23h2 < 10.0.25398.2092windows_server_2025 < 10.0.26100.32230Upgrade past the affected range:
windows_11_23h2 10.0.22631.6491windows_11_24h2 10.0.26100.7623windows_11_25h2 10.0.26200.7623windows_server_2022_23h2 10.0.25398.2092windows_server_2025 10.0.26100.32230Connected by shared product, vendor, weakness, or advisory.
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