CVE-2026-55052

HIGH

MEDIUM Priority: 0.08 BB Relevance: 68/100

Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Network Low Complexity No Interaction Conf. Impact Integ. Impact

AV: Network

AC: Low

PR: Low

UI: None

S: Unchanged

C: High

I: High

A: High

Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Vendor	Product	Version
Microsoft	Microsoft SharePoint Enterprise Server 2016	16.0.0 < 16.0.5561.1001
Microsoft	Microsoft SharePoint Enterprise Server 2016	16.0.0 < 16.0.5561.1001
Microsoft	Microsoft SharePoint Server 2019	16.0.0 < 16.0.10417.20175
Microsoft	Microsoft SharePoint Server 2019	16.0.0 < 16.0.10417.20175
Microsoft	Microsoft SharePoint Server Subscription Edition	16.0.0 < 16.0.19725.20434
Microsoft	Microsoft SharePoint Server Subscription Edition	16.0.0 < 16.0.19725.20434
microsoft	sharepoint_server	< 16.0.19725.20434
microsoft	sharepoint_server	2016
microsoft	sharepoint_server	2019

vendor-advisory patch

68 / 100

✓ Network accessible
✓ Low complexity
✓ No user interaction

8.8 / 10.0 v3.1

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

0.94%

Raw Score 0.009400

Percentile 60.8%

Date 2026-10-29

2026-10-29

0.00940

2026-10-28

0.00940

mitre ref →