Cyber Resilience

CVE-2023-41772

HighLPE

Published: 10 October 2023

Published
10 October 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.1953 95.5th percentile
Risk Priority 27 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-41772 is a high-severity Improper Access Control (CWE-284) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 4.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2023-41772 is a Win32k elevation of privilege vulnerability affecting the Win32k component in Microsoft Windows. It carries a CVSS 3.1 base score of 7.8 and is associated with CWE-284 improper access control.

An attacker with existing local access and low privileges can exploit the flaw without user interaction to obtain elevated rights on the system, resulting in full compromise of confidentiality, integrity, and availability within the affected process context.

Microsoft has published an advisory for CVE-2023-41772 that addresses the issue through its standard update distribution channels. The current EPSS score of 0.1953 with a recorded peak of 0.2128 does not indicate a material post-disclosure rise in observed exploitation interest.

EU & UK References

Vulnerability details

Win32k Elevation of Privilege Vulnerability

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 10 1809
≤ 10.0.17763.4974
microsoft
windows 10 21h2
≤ 10.0.19041.3570
microsoft
windows 10 22h2
≤ 10.0.19045.3570
microsoft
windows 11 21h2
≤ 10.0.22000.2538
microsoft
windows 11 22h2
≤ 10.0.22621.2428
microsoft
windows server 2019
all versions
microsoft
windows server 2022
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-284

The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.

addresses: CWE-284

Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.

addresses: CWE-284

Supervision and review of access control activities directly detects and remediates improper access configurations or usages.

addresses: CWE-284

Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.

addresses: CWE-284

By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.

addresses: CWE-284

Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.

addresses: CWE-284

Requiring prior authorization for each remote access type prevents improper access control over remote connections.

addresses: CWE-284

Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.

References