CVE-2026-27907High· 7.8▾ TwilightInteger underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
windows_11_23h2 < 10.0.22631.6936windows_11_24h2 < 10.0.26100.8246windows_11_25h2 < 10.0.26200.8246windows_11_26h1 < 10.0.28000.1836windows_server_2022_23h2 < 10.0.25398.2274windows_server_2025 < 10.0.26100.32690Upgrade past the affected range:
windows_11_23h2 10.0.22631.6936windows_11_24h2 10.0.26100.8246windows_11_25h2 10.0.26200.8246windows_11_26h1 10.0.28000.1836windows_server_2022_23h2 10.0.25398.2274windows_server_2025 10.0.26100.32690Connected 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-2026-97794High· 7.8Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-97792High· 7.8Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-97787High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-96939High· 7.0Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
CVE-2026-96909Critical· 9.8Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.