CVE-2023-46271

CRITICALNVD 9.89.8—

9.8

Extreme Networks IQ Engine before 10.6r1a, and through 10.6r4 before 10.6r5, has a buffer overflow. This issue arises from the ah_webui service, which listens on TCP port 3009 by default.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 26.6%
KEV: Not listed

Published

February 19, 2025

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated May 2, 2026

No patch confirmed yet.

generic

ZDI-23-1766 | Zero Day Initiative

https://www.zerodayinitiative.com/advisories/ZDI-23-1766/

generic

Networking Solutions: Discover Cloud Services | Extreme Networks

https://extremenetworks.com

generic

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000115354&q=CVE-2023-46271

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-2023-46271?

CVE-2023-46271 is a critical vulnerability published on February 19, 2025. Extreme Networks IQ Engine before 10.6r1a, and through 10.6r4 before 10.6r5, has a buffer overflow. This issue arises from the ah_webui service, which listens on TCP port 3009 by default.

When was CVE-2023-46271 disclosed?

CVE-2023-46271 was first published in the National Vulnerability Database on February 19, 2025, 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-2023-46271 actively exploited?

CVE-2023-46271 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-46271?

CVE-2023-46271 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-46271?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-46271, 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-2023-46271

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

ZDI-23-1766 | Zero Day Initiative

Networking Solutions: Discover Cloud Services | Extreme Networks

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-46271?

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Frequently asked(5)

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