Home/CVE/A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimi
CVE

CVE-2023-3669

A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimi

A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimited attempts of guessing the password within an import dialog.

LOW · CVSS 3.3 EPSS 0.00049
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-307Improper Restriction of Excessive Authentication Attempts
CWE-307Improper Restriction of Excessive Authentication Attempts
▤

Affected Products & Versions

1
codesys development system< 3.5.19.20
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · info@cert.vde.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Aug 2023 · 12:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-236-04
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-020-02
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-076-01
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert.vde.com/en/advisories/VDE-2023-023Third Party Advisory
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