CVE-2023-5396

HIGHNVD 7.47.4—

7.4

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.

CVSS v3: 7.4
EG Score: 7.4(medium)
EPSS: 75.1%
KEV: Not listed

Published

April 17, 2024

Last Modified

April 15, 2026

References (2)

psirt@honeywellhttps://process.honeywell.com
af854a3a-2127-422b-91ae-364da2661108https://process.honeywell.com

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-805Buffer Access with Incorrect Length Value

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:40 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-22 21:16 UTCepss_batch
2026-05-22 03:00 UTCEG score recompute
2026-05-22 03:00 UTCGHSA enrichment
2026-05-20 22:37 UTCepss_batch
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2026-05-20 11:21 UTCepss_batch
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2026-05-20 11:21 UTCepss_batch

Frequently asked(5)

What is CVE-2023-5396?

CVE-2023-5396 is a high vulnerability published on April 17, 2024. 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.

When was CVE-2023-5396 disclosed?

CVE-2023-5396 was first published in the National Vulnerability Database on April 17, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-5396 actively exploited?

CVE-2023-5396 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-5396?

CVE-2023-5396 has a CVSS v3 base score of 7.4 (NVD).

How do I remediate CVE-2023-5396?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5396, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-5396

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CVE-2023-5396

📅 Published

🔄 Last Modified

🔗 References (2)