How severe is CVE-2023-34391?

CVE-2023-34391 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-34391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34391?

CVE-2023-34391 affects Selinc Sel-5033 Acselerator Real-time Automation Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34391?

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-2023-34391 published?

CVE-2023-34391 was published on 2023-08-31 and last updated on 2026-06-17.

CVE-2023-34391

CVE-2023-34391 is a high-severity vulnerability in Selinc Sel-5033 Acselerator Real-time Automation Controller with a CVSS 3.x base score of 7.4. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Selinc Sel-5033 Acselerator Real-time Automation Controller
Published: 2023-08-31
Last modified: 2026-06-17

Description

Insecure Inherited Permissions vulnerability in Schweitzer Engineering Laboratories SEL-5033 AcSELerator RTAC Software on Windows allows Leveraging/Manipulating Configuration File Search Paths. See Instruction Manual Appendix A [Cybersecurity] tag dated 20230522 for more details. This issue affects SEL-5033 AcSELerator RTAC Software: before 1.35.151.21000.

Frequently asked questions

What is CVE-2023-34391?: Insecure Inherited Permissions vulnerability in Schweitzer Engineering Laboratories SEL-5033 AcSELerator RTAC Software on Windows allows Leveraging/Manipulating Configuration File Search Paths. See Instruction Manual Appendix A [Cybersecurity] tag dated 20230522 for more details. This issue affects SEL-5033 AcSELerator RTAC Software: before 1.35.151.21000.
How severe is CVE-2023-34391?: CVE-2023-34391 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-34391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34391?: CVE-2023-34391 affects Selinc Sel-5033 Acselerator Real-time Automation Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34391?: 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-2023-34391 published?: CVE-2023-34391 was published on 2023-08-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:selinc:sel-5033_acselerator_real-time_automation_controller:*:*:*:*:*:*:*:*

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