CVE-2023-29343

Microsoft Windows Sysmon ≤ 14.16

Published

09 May 2023

Modified

21 November 2024

Patch / advisory

View advisory

CVSS Score v3.1 7.8

Click a component to see what it means

Raw vector

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

EPSS Score 0.017 77th percentile

Risk Priority 70 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-29343 is a high-severity Link Following (CWE-59) vulnerability in Microsoft Windows Sysmon. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 23% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

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

CVE-2023-29343 is an elevation of privilege vulnerability affecting SysInternals Sysmon for Windows. The flaw is tracked under CWE-59 and carries a CVSS 3.1 base score of 7.8 reflecting local attack vector, low attack complexity, and low privileges required.

A local authenticated attacker can exploit the issue without user interaction to obtain elevated privileges, resulting in high impact to confidentiality, integrity, and availability on the target system.

Microsoft has published an advisory describing the vulnerability and associated updates at the referenced MSRC URL.

The EPSS score remains at 0.2036 with no material rise from its recorded peak.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2023-32916

Vulnerability Data

SysInternals Sysmon for Windows Elevation of Privilege Vulnerability

CWE(s): CWE-59 NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.002 Security Account Manager Credential Access

Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.

attack.mitre.org →

T1003.005 Cached Domain Credentials Credential Access

Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.

attack.mitre.org →

T1011 Exfiltration Over Other Network Medium Exfiltration

Adversaries may attempt to exfiltrate data over a different network medium than the command and control channel.

attack.mitre.org →

T1016 System Network Configuration Discovery Discovery

Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.

attack.mitre.org →

T1020 Automated Exfiltration Exfiltration

Adversaries may exfiltrate data, such as sensitive documents, through the use of automated processing after being gathered during Collection.

attack.mitre.org →

T1021.003 Distributed Component Object Model Lateral Movement

Adversaries may use [Valid Accounts](https://attack.

attack.mitre.org →

Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

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Affected Assets

microsoft

windows sysmon

≤ 14.16

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match

blocks

Secure SDLC practices directly require code to validate paths and avoid unsafe link following.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match

removes

A.5.15 Access control partial match

removes

A.5.16 Identity management partial match

removes

A.5.17 Authentication information partial match

removes

A.5.18 Access rights partial match

removes

A.8.10 Information deletion partial match

removes