Cyber Resilience

CVE-2022-44690

Microsoft Sharepoint Server 2013 … 2019

High EPSS
Published
13 December 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 0.82 99.6th percentile
Risk Priority 87 floored blend · peak EPSS

Summary

CVE-2022-44690 is a high-severity an unspecified weakness vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 0.4% 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-3 (Access Enforcement) — 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 Server is affected by CVE-2022-44690, a remote code execution vulnerability disclosed on December 13, 2022. The flaw carries a CVSS 3.1 base score of 8.8 with an attack vector of network, low attack complexity, and low privileges required, allowing an authenticated attacker to execute arbitrary code with impacts to confidentiality, integrity, and availability.

An attacker with low-privileged access to a SharePoint deployment can exploit the vulnerability over the network without user interaction to achieve full remote code execution on the server. This enables the attacker to run malicious code, access sensitive data, modify content, or disrupt service operations within the affected SharePoint environment.

Microsoft has published guidance for the vulnerability in its security update guide at the referenced advisory URL, which includes details on available patches and mitigation steps for supported SharePoint Server versions. The associated EPSS score reached a peak of 0.3860 with a current value of 0.3022, indicating moderate and sustained exploitation interest following disclosure.

EU & UK References

Vulnerability Data

Microsoft SharePoint Server 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 remote service.
attack.mitre.org →
T1059 Command and Scripting Interpreter Executionconfidence: HIGH
Successful RCE on the SharePoint host enables arbitrary command/script execution via the server’s command interpreter.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalationconfidence: MEDIUM
Low-privileged authenticated access is escalated to full system-level code execution.
attack.mitre.org →
T1213.002 Sharepoint Collectionconfidence: MEDIUM
Compromised SharePoint Server grants direct access to SharePoint-hosted data repositories.
attack.mitre.org →
inferred from description · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2023-21742Same product: Microsoft Sharepoint Foundation
CVE-2023-23395Same product: Microsoft Sharepoint Foundation
CVE-2023-28288Same product: Microsoft Sharepoint Foundation
CVE-2023-21744Same product: Microsoft Sharepoint Foundation
CVE-2020-1181Same product: Microsoft Sharepoint Foundation
CVE-2020-16952Same product: Microsoft Sharepoint Foundation
CVE-2019-0604Same product: Microsoft Sharepoint Foundation
CVE-2023-21717Same product: Microsoft Sharepoint Foundation
CVE-2022-35823Same product: Microsoft Sharepoint Foundation
CVE-2022-37961Same product: Microsoft Sharepoint Foundation

Affected Assets

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

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • AC-6 Least Privilege
  • AC-3 Access Enforcement
Detect
Catch it (NIST detect / respond)

—

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 eliminate the SharePoint RCE flaw before exploitation.

AC-6 Least Privilege partial match
prevent

Enforces least privilege so that low-privileged authenticated accounts cannot reach the code paths used for remote code execution.

AC-3 Access Enforcement partial match
prevent

Access enforcement mechanisms can restrict the specific SharePoint operations and objects an authenticated user is allowed to invoke, limiting exploitability.

References