Cyber Resilience

CVE-2022-35823

Microsoft Sharepoint Enterprise Server 2013 … 2016

High EPSS
Published
13 September 2022
Modified
21 November 2024
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.53 99th percentile
Risk Priority 80 floored blend · peak EPSS

Summary

CVE-2022-35823 is a high-severity an unspecified weakness vulnerability in Microsoft Sharepoint Enterprise Server. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-2 (Flaw Remediation) and AC-6 (Least Privilege) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Microsoft SharePoint contains a remote code execution vulnerability tracked as CVE-2022-35823. The flaw received a CVSS 3.1 base score of 8.8 with an attack vector of network, low attack complexity, low privileges required, and no user interaction, resulting in high impact to confidentiality, integrity, and availability. It was disclosed on 13 September 2022 and affects Microsoft SharePoint products.

An authenticated attacker with low privileges can exploit the issue over the network to achieve remote code execution on the affected SharePoint server, potentially leading to full compromise of the application and underlying data.

Microsoft has published mitigation guidance in its Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-35823, which security teams should consult for patch availability and recommended actions.

The associated EPSS score currently stands at 0.3842 with a recorded peak of 0.4059.

EU & UK References

Vulnerability Data

Microsoft SharePoint Remote Code Execution Vulnerability

CWE(s)
NVD-CWE-noinfo

Related Threats

Likely ATT&CK TechniquesAI

Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.

T1190 Exploit Public-Facing Application Initial Accessconfidence: HIGH
Authenticated network RCE against a public-facing SharePoint server directly matches exploitation of a public-facing application.
attack.mitre.org →
T1213.002 Sharepoint Collectionconfidence: HIGH
Successful RCE on SharePoint enables arbitrary access to SharePoint-hosted data repositories.
attack.mitre.org →
T1505.003 Web Shell Persistenceconfidence: MEDIUM
RCE on a SharePoint server can be used to deploy a web shell for persistent access.
attack.mitre.org →
inferred from description · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2020-1181Same product: Microsoft Sharepoint Enterprise Server
CVE-2020-16952Same product: Microsoft Sharepoint Enterprise Server
CVE-2019-0604Same product: Microsoft Sharepoint Enterprise Server
CVE-2023-21717Same product: Microsoft Sharepoint Enterprise Server
CVE-2022-37961Same product: Microsoft Sharepoint Enterprise Server
CVE-2022-38053Same product: Microsoft Sharepoint Enterprise Server
CVE-2023-24955Same product: Microsoft Sharepoint Enterprise Server
CVE-2023-24950Same product: Microsoft Sharepoint Enterprise Server
CVE-2023-21742Same product: Microsoft Sharepoint Foundation
CVE-2022-44690Same product: Microsoft Sharepoint Foundation

Affected Assets

microsoft
sharepoint enterprise server
2013, 2016
microsoft
sharepoint foundation
2013
microsoft
sharepoint server
2019, all versions

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • AC-6 Least Privilege
Detect
Catch it (NIST detect / respond)
  • SI-4 System Monitoring
Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires timely application of vendor patches to remediate the SharePoint RCE flaw before exploitation.

AC-6 Least Privilege partial match
prevent

Enforces least-privilege assignments so that the low-privileged authenticated accounts required by the exploit have minimal rights on the SharePoint server.

SI-4 System Monitoring partial match
detect

Enables continuous monitoring and anomaly detection on SharePoint servers to identify exploitation attempts or post-exploitation behavior tied to CVE-2022-35823.

References