CVE-2026-2364

highpriority · track · 0EPSS 0.001 · 0 %ileDEEU
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.09% (0th) EPSS
CVSS 7.3 · high
Is it mine?
5 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · codesys_psirt

EPSS · scored 2026-10-23

If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.

01

remediations

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

A vendor fix is available.

  • FixedCODESYS Installercodesys_psirt

    Update the following product to version 2.6.1.0. * CODESYS Installer The CODESYS Installer as well as the CODESYS Development System can 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 Update area https://www.codesys.com/download/.

02

cvss

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

7.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–7.3

v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 1.3 · impact 5.9
v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/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-367USCWE-367US
05

affected products (5)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • Advisory2026-01_VDE-2026-012CODESYS Installer - Possible Privilege Escalation2026-03-10csaf · codesys_psirtDE

    The CODESYS Installer is affected by a privilege escalation vulnerability. Due to a race condition, a local attacker with limited privileges can replace the verified downloaded setup before execution. Because the update process runs with administrator privileges, a malicious application can be executed with elevated rights. The attack requires the legitimate user to confirm the self‑update prompt for the CODESYS Installer itself or to initiate an installation of a CODESYS Development System. The update process for CODESYS Add-Ons is not affected by this issue.

  • WID-SEC-W-2026-0640CODESYS Installer: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2026-03-09csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle in CODESYS Installer ausnutzen, um seine Privilegien zu erhöhen.

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 2026-03-10modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

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