CVE-2023-28128

HIGHNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 85% probability of exploitation within the next 30 days (top 0.3% of all CVEs). NVD baseline CVSS 7.2 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
7.2
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 85%
CISA-KEV: Not listedEPSS: 85%CVSS: 7.2Exploit: NoneExposed: 0

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

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to achieve a remove code execution.

CVSS v3
7.2
EG Score
9.0(high)
EG Risk
74(Track*)
EG Risk 74/100SSVC: 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
Severity90% × 45%
Exploitation85% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
99.7%
KEV
Not listed

Published

May 9, 2023

Last Modified

January 28, 2025

References (5)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 19× 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. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:20 UTCEG score recompute▲ 1.80
  5. 2026-07-22 23:08 UTCEG score recompute▼ 1.80
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-22 14:06 UTCEPSS rescore
  8. 2026-07-20 17:06 UTCEPSS rescore
  9. 2026-07-16 17:01 UTCEPSS rescore
  10. 2026-07-16 17:01 UTCEPSS rescore
  11. 2026-07-13 06:11 UTCEPSS rescore
  12. 2026-07-13 06:11 UTCEPSS rescore
  13. 2026-07-09 19:08 UTCEPSS rescore
  14. 2026-07-09 19:08 UTCEPSS rescore
  15. 2026-07-05 02:28 UTCEPSS rescore
  16. 2026-07-01 15:04 UTCEPSS rescore
  17. 2026-06-28 04:54 UTCEPSS rescore
  18. 2026-06-25 13:48 UTCEPSS rescore
  19. 2026-06-25 13:48 UTCEPSS rescore
  20. 2026-06-23 21:31 UTCEPSS rescore
  21. 2026-06-23 21:31 UTCEPSS rescore
  22. 2026-06-17 17:51 UTCEPSS rescore
  23. 2026-06-17 17:51 UTCEPSS rescore
  24. 2026-06-16 17:51 UTCEPSS rescore
  25. 2026-06-16 17:51 UTCEPSS rescore
Show 29 more
  1. 2026-06-15 17:47 UTCEPSS rescore
  2. 2026-06-14 23:16 UTCEPSS rescore
  3. 2026-06-13 22:59 UTCEPSS rescore
  4. 2026-06-13 22:59 UTCEPSS rescore
  5. 2026-06-12 23:10 UTCEPSS rescore
  6. 2026-06-10 22:17 UTCEPSS rescore
  7. 2026-06-10 13:21 UTCEPSS rescore
  8. 2026-06-10 13:21 UTCEPSS rescore
  9. 2026-06-08 14:15 UTCEPSS rescore
  10. 2026-06-08 14:15 UTCEPSS rescore
  11. 2026-06-07 15:23 UTCEPSS rescore
  12. 2026-06-07 15:23 UTCEPSS rescore
  13. 2026-06-04 13:11 UTCEPSS rescore
  14. 2026-06-04 13:11 UTCEPSS rescore
  15. 2026-06-02 20:12 UTCEPSS rescore
  16. 2026-06-02 20:12 UTCEPSS rescore
  17. 2026-06-02 20:12 UTCEPSS rescore
  18. 2026-06-01 13:51 UTCEPSS rescore
  19. 2026-05-31 22:29 UTCEPSS rescore
  20. 2026-05-31 22:29 UTCEPSS rescore
  21. 2026-05-31 22:29 UTCEPSS rescore
  22. 2026-05-29 13:43 UTCEPSS rescore
  23. 2026-05-26 13:43 UTCEPSS rescore
  24. 2026-05-26 13:43 UTCEPSS rescore
  25. 2026-05-26 07:18 UTCEPSS rescore
  26. 2026-05-26 07:18 UTCEPSS rescore
  27. 2026-05-26 07:17 UTCEPSS rescore
  28. 2026-05-25 01:30 UTCEG score recompute
  29. 2026-05-25 01:30 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/windows/http/ivanti_avalanche_filestoreconfig_upload✓ verified
    First seen Apr 24, 2023

    Ivanti Avalanche FileStoreConfig File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-28128?
CVE-2023-28128 is a high vulnerability published on May 9, 2023. An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to achieve a remove code execution.
When was CVE-2023-28128 disclosed?
CVE-2023-28128 was first published in the National Vulnerability Database on May 9, 2023, with the most recent update on January 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28128 actively exploited?
CVE-2023-28128 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-28128?
CVE-2023-28128 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2023-28128?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28128, 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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