CVE-2026-85880High· 7.8▾ Abyssal⚠ Exploited in the wild0dayPoC availableHeap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 42.9 · likelihood 0.1 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
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 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Sep 22, 2026
Last analysed / modified upstream
0.6%
Added to the CISA catalog on Sep 8, 2026. Federal remediation due Sep 22, 2026. View catalog ↗
Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.
windows_10_1607 < 10.0.14393.9512windows_10_1809 < 10.0.17763.9245windows_10_21h2 < 10.0.19044.7725windows_10_22h2 < 10.0.19045.7725windows_server_2012windows_server_2012 = r2windows_server_2016 < 10.0.14393.9512windows_server_2019 < 10.0.17763.9245windows_server_2022 < 10.0.20348.5622Upgrade past the affected range:
windows_10_1607 10.0.14393.9512windows_10_1809 10.0.17763.9245windows_10_21h2 10.0.19044.7725windows_10_22h2 10.0.19045.7725windows_server_2016 10.0.14393.9512windows_server_2019 10.0.17763.9245windows_server_2022 10.0.20348.5622Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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