CVE-2026-20863High· 7.0▾ TwilightDouble free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
0.4% → 0.4%
Double free in Windows Win32K - ICOMP 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 < 10.0.20348.4648windows_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 10.0.20348.4648windows_server_2022_23h2 10.0.25398.2092windows_server_2025 10.0.26100.32230Connected by shared product, vendor, weakness, or advisory.
CVE-2026-97830High· 7.5Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.
CVE-2026-88071High· 7.8Double free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
CVE-2026-26166High· 7.0Double free in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-26179High· 7.8Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-69322High· 8.0Double free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges over a network.
CVE-2026-83831High· 8.8Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability