CVE-2023-23395 — Microsoft SharePoint Server Spoofing Vulnerability

Executive Summary

None

Overview

3.1

CVSS LOW

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Spoofing

Released Mar 14 2023

Last Updated Mar 14 2023

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00605 — 0.44216 percentile

NVD CVSS 3.1 LOW — matches MSRC

CVSS Vector

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

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

PRIVILEGES REQUIRED

None

USER INTERACTION

Required

SCOPE

Unchanged

CONFIDENTIALITY

None

INTEGRITY

Low

AVAILABILITY

None

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 2.7

EPSS Score

0.00605

probability of exploitation in the next 30 days

0.44216 percentile - updated 2026-06-21

View on FIRST.org

Affected Products

3 affected products

Product	KB Article	Severity	Impact	Restart Required
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 5002366 (Cumulative Update) 5002367 (Security Update) 5002168 (Security Update) Important Spoofing 5002347 5002147 Base: 3.1 Temporal: 2.7 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C 15.0.5537.1000 Maybe None Microsoft SharePoint Enterprise Server 2016	`5002368 (Security Update)`	Important	Spoofing	Maybe
Microsoft SharePoint Foundation 2013 Service Pack 1 5002367 (Security Update) 5002168 (Security Update) Important Spoofing 5002347 5002147 Base: 3.1 Temporal: 2.7 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C 15.0.5537.1000 Maybe None Microsoft SharePoint Server 2019	`5002358 (Security Update)`	Important	Spoofing	Maybe
Microsoft SharePoint Server Subscription Edition	`5002355 (Security Update)`	Important	Spoofing	Maybe

Patches

3 patches

Article	Type	Restart
`5002368`	Security Update	Maybe
`5002358`	Security Update	Maybe
`5002355`	Security Update	Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Lukasz Plonka

References

MSRC Advisory MITRE NVD