How severe is CVE-2023-5396?

CVE-2023-5396 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2023-5396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5396?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-5396 have an EU (EUVD) identifier?

Yes. CVE-2023-5396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-57711.

When was CVE-2023-5396 published?

CVE-2023-5396 was published on 2024-04-17 and last updated on 2026-06-17.

CVE-2023-5396

CVE-2023-5396 is a high-severity vulnerability with a CVSS 3.x base score of 7.4. 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-805.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-57711
Weakness: CWE-805
Published: 2024-04-17
Last modified: 2026-06-17

Description

Server receiving a malformed message creates connection for a hostname that may cause a stack overflow resulting in possible remote code execution. See Honeywell Security Notification for recommendations on upgrading and versioning.

Frequently asked questions

What is CVE-2023-5396?: Server receiving a malformed message creates connection for a hostname that may cause a stack overflow resulting in possible remote code execution. See Honeywell Security Notification for recommendations on upgrading and versioning.
How severe is CVE-2023-5396?: CVE-2023-5396 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2023-5396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-5396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-5396 have an EU (EUVD) identifier?: Yes. CVE-2023-5396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-57711.
When was CVE-2023-5396 published?: CVE-2023-5396 was published on 2024-04-17 and last updated on 2026-06-17.

References

https://process.honeywell.com

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