How severe is CVE-2023-29357?

CVE-2023-29357 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 100.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-29357: Microsoft SharePoint Server Elevation of Privilege

CISA Known Exploited Vulnerabilities

Microsoft SharePoint Server Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-01-10

Remediation due

2024-01-31

Ransomware

Known use

Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357; https://nvd.nist.gov/vuln/detail/CVE-2023-29357

Description

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Severity

CVSS 3.1 · CNA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Microsoft SharePoint Server 2019	16.0.0 to <16.0.10399.20005

References

1 Links

Vendor advisories

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Record Details

Published

2023-06-13

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-303 · Incorrect Authentication Algorithm Implementation

IAM Tools Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.