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CRITICAL

CVE-2023-31242

CVSS v3

9.8

CRITICAL

EPSS Score

3.5 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A specially-crafted series of network requests can lead to arbitrary authentication. An attacker can send a sequence of requests to trigger this vulnerability.

Technical details

Published
2023-09-05

Frequently asked questions

What is CVE-2023-31242?

An authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A specially-crafted series of network requests can lead to arbitrary authentication. An attacker can send a sequence of requests to trigger this vulnerability.

Is CVE-2023-31242 actively exploited?

Active exploitation of CVE-2023-31242 has not been confirmed. Its EPSS score was 3.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-31242?

CVE-2023-31242 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-31242 affecting your environment?

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