How severe is CVE-2023-5406?

CVE-2023-5406 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-5406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5406?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-5406 have an EU (EUVD) identifier?

Yes. CVE-2023-5406 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-57721.

When was CVE-2023-5406 published?

CVE-2023-5406 was published on 2024-04-17 and last updated on 2026-06-17.

CVE-2023-5406

CVE-2023-5406 is a medium-severity vulnerability with a CVSS 3.x base score of 5.9. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-57721
Weakness: CWE-787
Published: 2024-04-17
Last modified: 2026-06-17

Description

Server communication with a controller can lead to remote code execution using a specially crafted message from the controller. See Honeywell Security Notification for recommendations on upgrading and versioning.

Frequently asked questions

What is CVE-2023-5406?: Server communication with a controller can lead to remote code execution using a specially crafted message from the controller. See Honeywell Security Notification for recommendations on upgrading and versioning.
How severe is CVE-2023-5406?: CVE-2023-5406 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-5406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-5406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-5406 have an EU (EUVD) identifier?: Yes. CVE-2023-5406 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-57721.
When was CVE-2023-5406 published?: CVE-2023-5406 was published on 2024-04-17 and last updated on 2026-06-17.

References

https://process.honeywell.com

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