CVE-2024-27201: An improper input validation vulnerability exists in the OAS Engine User Configuration functionality of Open A

Routine

MEDIUM 4.9DOWNGRADE

CVE-2024-27201 is a medium-severity flaw (CVSS 4.9) affecting open automation software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper input validation vulnerability exists in the OAS Engine User Configuration functionality of Open Automation Software OAS Platform V19.00.0057. A specially crafted series of network requests can lead to unexpected data in the configuration. An attacker can send a sequence of requests to trigger this vulnerability.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-20
Published	2024-04-03
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: openautomationsoftware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-04-03 14:15 UTCPublished CVE record published
2026-06-17 07:19 UTCUpdated Record last modified

openautomationsoftware open automation software DOWNGRADE

Affected: 19.0.0.57

Fixed in: no fixed release known

Safe to downgrade to: a release before 19.0.0.57

1. Check installed version

apt-cache policy open-automation-software || rpm -q open-automation-software || open-automation-software --version

2. No fixed release: DOWNGRADE to a release before 19.0.0.57 (Debian / Ubuntu)

apt-cache madison open-automation-software sudo apt install open-automation-software=<VERSION_BEFORE_19.0.0.57> sudo apt-mark hold open-automation-software

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list open-automation-software sudo dnf downgrade open-automation-software-<VERSION_BEFORE_19.0.0.57> sudo dnf versionlock add open-automation-software

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-27201?

open automation software: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-27201 being exploited?

CVE-2024-27201 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-27201 affect?

CVE-2024-27201 affects open automation software. Severity is medium (CVSS 4.9). An improper input validation vulnerability exists in the OAS Engine User Configuration functionality of Open Automation Software OAS Platform V19.00.0057. A specially crafted series of network requests can lead to unexpected data in the con

How urgent is CVE-2024-27201?

Priority 35/100. Public exploit reference

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References

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