CVE-2026-56164
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
26.6%
97.9th percentile
CISA KEV
Listed
Added 2026-07-14 · patch by 2026-07-17
Weakness / dates
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Published — · modified —
Description
Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.