CVE-2023-46273

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Bonjour Gateway in Extreme Networks IQ Engine before 10.6r1a, and through 10.6r4 before 10.6r5, has an ah_bgd buffer overflow via ah_event_send.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Networking Solutions: Discover Cloud Services | Extreme Networks

https://extremenetworks.com
generic

Security Advisory: SA-2023-135 - IQ Engine ah_bgd service buffer overflow (CVE-2023-46273) | Extreme Portal

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000115356

Vendor Advisories for CVE-2023-46273(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 34× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 10:45 UTCGHSA enrichment
  2. 2026-09-19 22:15 UTCEG score recompute
  3. 2026-09-19 22:15 UTCGHSA enrichment
  4. 2026-09-19 09:45 UTCGHSA enrichment
  5. 2026-09-18 21:16 UTCEG score recompute
  6. 2026-09-18 21:16 UTCGHSA enrichment
  7. 2026-09-18 19:26 UTCEPSS rescore
  8. 2026-09-18 08:04 UTCGHSA enrichment
  9. 2026-09-17 19:34 UTCEG score recompute
  10. 2026-09-17 19:34 UTCGHSA enrichment
  11. 2026-09-17 19:25 UTCEPSS rescore
  12. 2026-09-17 03:59 UTCGHSA enrichment
  13. 2026-09-16 15:29 UTCEG score recompute
  14. 2026-09-16 15:29 UTCGHSA enrichment
  15. 2026-09-16 14:52 UTCEG score recompute
  16. 2026-09-16 14:52 UTCGHSA enrichment
  17. 2026-09-16 14:06 UTCEPSS rescore
  18. 2026-09-16 09:18 UTCEG score recompute
  19. 2026-09-16 09:18 UTCGHSA enrichment
  20. 2026-09-16 05:11 UTCEPSS rescore
  21. 2026-09-15 20:48 UTCGHSA enrichment
  22. 2026-09-15 08:19 UTCEG score recompute
  23. 2026-09-15 08:19 UTCGHSA enrichment
  24. 2026-09-15 03:08 UTCEPSS rescore
  25. 2026-09-14 19:50 UTCEG score recompute
Show 9 more
  1. 2026-09-14 19:50 UTCGHSA enrichment
  2. 2026-09-14 07:21 UTCEG score recompute
  3. 2026-09-14 07:21 UTCGHSA enrichment
  4. 2026-09-14 07:20 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  5. 2026-09-14 06:20 UTCNVD update
  6. 2026-09-14 06:20 UTCEG score recompute▲ 8.80
  7. 2026-09-14 06:19 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  8. 2026-09-14 06:00 UTCEG score recompute
  9. 2026-09-14 05:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-46273?
CVE-2023-46273 is a high vulnerability published on September 14, 2026. Bonjour Gateway in Extreme Networks IQ Engine before 10.6r1a, and through 10.6r4 before 10.6r5, has an ahbgd buffer overflow via ahevent_send.
When was CVE-2023-46273 disclosed?
CVE-2023-46273 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-46273 actively exploited?
CVE-2023-46273 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 75.7% of all scored CVEs.
What is the CVSS score of CVE-2023-46273?
CVE-2023-46273 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-46273?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-46273, 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

Explore the affected products and dependency analysis for CVE-2023-46273

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