What is CVE-2023-31242?

CVE-2023-31242 is a high-severity vulnerability in Open Automation Software Oas Platform, classified under Improper Access Control. CVSS score: 8.1/10. Published 2023-09-05.

How severe is CVE-2023-31242?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Open Automation Software Oas Platform

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.

Published 2023-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.035 (88.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.035 · change: +0.001

Affected products

Open Automation Software Oas Platform — versions v18.00.0072
Openautomationsoftware Oas Platform — versions 18.00.0072

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2023-1769 (Technical Description, Exploit, Third Party Advisory)
www.talosintelligence.com/vulnerability_reports/TALOS-2023-1769 (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-31242?: CVE-2023-31242 is a high-severity vulnerability in Open Automation Software Oas Platform, classified under Improper Access Control. CVSS score: 8.1/10. Published 2023-09-05.
How severe is CVE-2023-31242?: High severity. CVSS v3 base score is 8.1 out of 10.