CVE-2023-31242

criticalpriority · track · 40EPSS 0.035 · 89 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.48% (89th) EPSS

CVSS 9.8 · critical

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · talos-cna@cisco.com USexploitability 2.2 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-284US

affected products (2)

Products and version ranges known to be affected.

Open Automation Software OAS Platform≤ v18.00.0072enisa_euvdEU
openautomationsoftware oas platform= 18.00.0072nvdUScpe:2.3:a:openautomationsoftware:oas_platform:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2023-09-05modified 2026-06-17

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+7720 more

references (7)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2023-31242/cnnvd
https://openautomationsoftware.com/knowledge-base/getting-started-with-oas/Patchcnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1769 cnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1769 enisa_euvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1769 enisa_euvd
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1769ExploitTechnical DescriptionThird Party Advisorynvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1769ExploitTechnical DescriptionThird Party Advisorynvd

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