CVE-2026-20947 — Microsoft SharePoint Server Remote Code Execution Vulnerability

Executive Summary

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Overview

8.8

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Exploitation Unlikely

MS Exploit Likelihood

Category Remote Code Execution

Weakness CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Released Jan 13 2026

Last Updated Jan 13 2026

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.18602 — 0.96998 percentile

NVD CVSS 8.8 HIGH — matches MSRC

CVSS Vector

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

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 7.7

EPSS Score

0.18602

probability of exploitation in the next 30 days

0.96998 percentile - updated 2026-08-14

View on FIRST.org

Affected Products

1 affected product

Product	KB Article	Severity	Impact	Restart Required
Microsoft SharePoint Enterprise Server 2016 5002828 (Security Update) 5002827 (Security Update) Important Remote Code Execution 5002821 5002804 Base: 8.8 Temporal: 7.7 Vector: 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 16.0.5535.1001 16.0.5535.1000 Maybe None Microsoft SharePoint Server 2019 5002825 (Security Update) 5002823 (Security Update) Important Remote Code Execution 5002816 5002802 Base: 8.8 Temporal: 7.7 Vector: 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 16.0.10417.20083 Maybe None Microsoft SharePoint Server Subscription Edition	`5002822 (Security Update)`	Important	Remote Code Execution	Maybe

Patches

1 patch

Article	Type	Restart
`5002822`	Security Update	Maybe

Exploits & PoC

No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.

Detection Rules

No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.

Acknowledgments

41ae55e9310ff27fa6f26af4727e5590

References

MSRC Advisory MITRE NVD