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CVE-2026-20947

38
FAUCET Score

CVE-2026-20947 is a critical SQL injection vulnerability affecting Microsoft Office SharePoint Server. An authenticated attacker can exploit this flaw over a network to achieve remote code execution. This vulnerability carries a high CVSS score of 8.8, indicating a low attack complexity and significant potential for high impact on confidentiality, integrity, and availability. While there is no public exploit code or evidence of active exploitation, the vulnerability has garnered substantial community discussion and media coverage, suggesting heightened awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 16.0.19127.20442CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
13.50%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.1350 is in the 95th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2016Fixed in: 16.0.5535.1001
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2016Fixed in: 16.0.5535.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server 2019Fixed in: 16.0.10417.20083
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server Subscription EditionFixed in: 16.0.19127.20442
View patch
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2026-Jan/CVE-2026-20947Important

Microsoft SharePoint Server Remote Code Execution Vulnerability

Jan 13, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-20947
Vendor Advisory