CVE-2023-4163

MEDIUMNVD 4.44.4—

4.4

In Brocade Fabric OS before v9.2.0a, a local authenticated privileged user can trigger a buffer overflow condition, leading to a kernel panic with large input to buffers in the portcfgfportbuffers command.

CVSS v3: 4.4
EG Score: 4.4(medium)
EPSS: 8.7%
KEV: Not listed

Published

August 31, 2023

Last Modified

February 13, 2025

References (4)

sirt@brocadehttps://security.netapp.com/advisory/ntap-20231130-0001/
sirt@brocadehttps://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/22514
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231130-0001/
af854a3a-2127-422b-91ae-364da2661108https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/22514

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 18× 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.

2026-06-06 13:46 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-4163?

CVE-2023-4163 is a medium vulnerability published on August 31, 2023. In Brocade Fabric OS before v9.2.0a, a local authenticated privileged user can trigger a buffer overflow condition, leading to a kernel panic with large input to buffers in the portcfgfportbuffers command.

When was CVE-2023-4163 disclosed?

CVE-2023-4163 was first published in the National Vulnerability Database on August 31, 2023, with the most recent update on February 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-4163 actively exploited?

CVE-2023-4163 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-4163?

CVE-2023-4163 has a CVSS v3 base score of 4.4 (NVD).

How do I remediate CVE-2023-4163?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-4163, 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

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CVE-2023-4163

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-4163?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)