CVE-2023-28126

MEDIUMNVD 5.98.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.0 because EPSS predicts 67% probability of exploitation within the next 30 days (top 0.8% of all CVEs). NVD baseline CVSS 5.9 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
5.9
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 67%
CISA-KEV: Not listedEPSS: 67%CVSS: 5.9Exploit: NoneExposed: 0

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

An authentication bypass vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to gain access by exploiting the SetUser method or can exploit the Race Condition in the authentication message.

CVSS v3
5.9
EG Score
8.0(high)
EG Risk
63(Track)
EG Risk 63/100SSVC: 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
Severity80% × 45%
Exploitation67% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.2%
KEV
Not listed

Published

May 9, 2023

Last Modified

January 29, 2025

References (2)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× 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. 2026-07-23 02:20 UTCEG score recompute▲ 2.10
  2. 2026-07-22 23:08 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-01 15:04 UTCEPSS rescore
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  3. 2026-06-27 03:07 UTCEPSS rescore
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  10. 2026-06-21 01:58 UTCEPSS rescore
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  22. 2026-06-12 23:10 UTCEPSS rescore
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  43. 2026-05-31 22:29 UTCEPSS rescore
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  46. 2026-05-31 00:15 UTCEPSS rescore
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  48. 2026-05-29 13:43 UTCEPSS rescore
  49. 2026-05-28 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 13:39 UTCEPSS rescore
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  55. 2026-05-26 07:18 UTCEPSS rescore
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  57. 2026-05-26 07:17 UTCEPSS rescore
  58. 2026-05-25 01:31 UTCEG score recompute
  59. 2026-05-25 01:31 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-28126?
CVE-2023-28126 is a medium vulnerability published on May 9, 2023. An authentication bypass vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to gain access by exploiting the SetUser method or can exploit the Race Condition in the authentication message.
When was CVE-2023-28126 disclosed?
CVE-2023-28126 was first published in the National Vulnerability Database on May 9, 2023, with the most recent update on January 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28126 actively exploited?
CVE-2023-28126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-28126?
CVE-2023-28126 has a CVSS v3 base score of 5.9 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.0.
How do I remediate CVE-2023-28126?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28126, 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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