CVE-2026-45484 | BDVDB-2026-339111 Detail

MicrosoftMicrosoft SharePoint Enterprise Server 2016

Description#

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

No public exploit known

8.8 High

33.5%, Moderate

Estimated chance of exploitation in the next 30 days. EPSS percentile: 98.4.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Insecure Deserialization

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

8.8 High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).