CVE-2023-5751

highpriority · track · 0EPSS 0.002 · 6 %ileDEEU
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.17% (6th) EPSS
CVSS 7.8 · high
Is it mine?
19 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · codesys_psirt

EPSS · scored 2026-10-22

A local attacker with low privileges can read and modify any users files and cause a DoS in the working directory of the affected products due to exposure of resource to wrong sphere. 

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedcodesys_psirt

    Update the following products to version 3.5.20.10. CODESYS Control Win (SL) CODESYS Edge Gateway for Windows CODESYS Gateway for Windows CODESYS HMI (SL) CODESYS Development System V3 The CODESYS Development System and the products available as CODESYS add-ons can be downloaded and installed directly with the CODESYS Installer or be downloaded from the CODESYS Store. Alternatively, as well as for all other products, you will find further information on obtaining the software update in the CODESYS download area. The working directories of the affected products are moved to "%APPDATA%\CODESYS\", which is usually located in C:\Users\<user>\AppData\CODESYS\ and can only be accessed by the respective user. If the PLC is started with the "CODESYS Control Win SysTray PLC Control", it runs in the Windows user account "LocalSystem" and therefore the effective working directory is "C:\Windows\system32\config\systemprofile\AppData\Roaming\CODESYS\" or C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\CODESYS\. An administrator account is required to access these folders.

  • Mitigationcodesys_psirt

    Only create required user accounts on the Microsoft Windows systems on which the affected software is installed. Users who do not need to use the affected software should not have access to these systems.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 1.8 · impact 5.9
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · CODESYS PSIRT
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-668USCWE-668US
05

affected products (19)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2024-027CODESYS: Vulnerability in multiple products through exposure of resource to wrong sphere2024-06-04csaf · codesys_psirtDE

    All legitimate local Microsoft Windows users can read or modify files that are located in the working directory of the affected CODESYS products, even if they are executed under a different user or in the system context.

  • WID-SEC-W-2024-1285CODESYS: Mehrere SchwachstellenDeutsch2024-06-03csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in CODESYS ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen, Dateien zu manipulieren oder vertrauliche Informationen offenzulegen.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundcodesys_psirtNVDCVE.orgMITRE
published 2024-06-04modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

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