How severe is CVE-2022-4048?

CVE-2022-4048 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2022-4048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4048?

CVE-2022-4048 affects Codesys Development System V3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4048?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-4048 published?

CVE-2022-4048 was published on 2023-05-15 and last updated on 2026-06-17.

CVE-2022-4048

CVE-2022-4048 is a high-severity vulnerability in Codesys Development System V3 with a CVSS 3.x base score of 7.7. 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-326.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Codesys Development System V3
Published: 2023-05-15
Last modified: 2026-06-17

Description

Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate code of the encrypted boot application.

Frequently asked questions

What is CVE-2022-4048?: Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate code of the encrypted boot application.
How severe is CVE-2022-4048?: CVE-2022-4048 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2022-4048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4048?: CVE-2022-4048 affects Codesys Development System V3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4048?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-4048 published?: CVE-2022-4048 was published on 2023-05-15 and last updated on 2026-06-17.

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17350&token=2cee62285d3ec76d6a78dfa9b9e81e66f6136a2a&download=

Affected products (1)

cpe:2.3:a:codesys:development_system_v3:*:*:*:*:*:*:*:*

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