How severe is CVE-2023-3669?

CVE-2023-3669 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-3669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3669?

CVE-2023-3669 affects Codesys Development System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3669?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-3669 published?

CVE-2023-3669 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-3669

CVE-2023-3669 is a low-severity vulnerability in Codesys Development System with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Codesys Development System
Published: 2023-08-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-3669?: 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.
How severe is CVE-2023-3669?: CVE-2023-3669 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-3669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3669?: CVE-2023-3669 affects Codesys Development System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3669?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3669 published?: CVE-2023-3669 was published on 2023-08-03 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2023-023

Affected products (1)

cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*

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