CVE-2026-85900High· 8.8▾ TwilightDeserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.3 · 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 Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
1.5%
1.5% → 1.5%
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
sharepoint_server < 16.0.20326.20190Upgrade past the affected range:
sharepoint_server 16.0.20326.20190Connected by shared product, vendor, weakness, or advisory.
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