How severe is CVE-2023-39475?

CVE-2023-39475 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39475 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39475?

CVE-2023-39475 affects Inductiveautomation Ignition. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39475?

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

Does CVE-2023-39475 have an EU (EUVD) identifier?

Yes. CVE-2023-39475 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-43198.

When was CVE-2023-39475 published?

CVE-2023-39475 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-39475

CVE-2023-39475 is a critical-severity vulnerability in Inductiveautomation Ignition with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-43198
Weakness: CWE-502
Affected product: Inductiveautomation Ignition
Published: 2024-05-03
Last modified: 2026-06-17

Description

Inductive Automation Ignition ParameterVersionJavaSerializationCodec Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ParameterVersionJavaSerializationCodec class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-20290.

Frequently asked questions

What is CVE-2023-39475?: Inductive Automation Ignition ParameterVersionJavaSerializationCodec Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ParameterVersionJavaSerializationCodec class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-20290.
How severe is CVE-2023-39475?: CVE-2023-39475 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39475 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39475?: CVE-2023-39475 affects Inductiveautomation Ignition. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39475?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-39475 have an EU (EUVD) identifier?: Yes. CVE-2023-39475 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-43198.
When was CVE-2023-39475 published?: CVE-2023-39475 was published on 2024-05-03 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1047/

Affected products (1)

cpe:2.3:a:inductiveautomation:ignition:*:*:*:*:*:*:*:*

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