CVE-2026-54409

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
16.9%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 7, 2026

Advisory Details (1)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic
https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Vendor Advisories for CVE-2026-54409(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 11× in last 7d / 64× 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 03:19 UTCEG score recompute▲ 0.60
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 06:19 UTCGHSA enrichment
  10. 2026-07-16 17:25 UTCGHSA enrichment
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-16 03:39 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 14:45 UTCGHSA enrichment
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-15 01:45 UTCGHSA enrichment
  19. 2026-07-14 12:51 UTCGHSA enrichment
  20. 2026-07-13 23:56 UTCGHSA enrichment
  21. 2026-07-13 22:31 UTCEPSS rescore
  22. 2026-07-13 11:01 UTCGHSA enrichment
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-12 22:07 UTCGHSA enrichment
Show 39 more
  1. 2026-07-12 09:12 UTCGHSA enrichment
  2. 2026-07-12 05:46 UTCEPSS rescore
  3. 2026-07-11 20:17 UTCGHSA enrichment
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 07:21 UTCGHSA enrichment
  7. 2026-07-10 18:26 UTCGHSA enrichment
  8. 2026-07-10 05:28 UTCGHSA enrichment
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 16:33 UTCGHSA enrichment
  12. 2026-07-09 03:32 UTCGHSA enrichment
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 14:38 UTCGHSA enrichment
  16. 2026-07-08 01:43 UTCGHSA enrichment
  17. 2026-07-07 18:13 UTCNVD updateCVSS v3 → 8.1
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-07 12:48 UTCGHSA enrichment
  21. 2026-07-06 23:53 UTCGHSA enrichment
  22. 2026-07-06 23:51 UTCGHSA enrichment
  23. 2026-07-06 16:27 UTCEPSS rescore
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 10:56 UTCGHSA enrichment
  26. 2026-07-06 02:23 UTCEPSS rescore
  27. 2026-07-06 02:23 UTCEPSS rescore
  28. 2026-07-05 21:59 UTCGHSA enrichment
  29. 2026-07-05 09:05 UTCGHSA enrichment
  30. 2026-07-05 02:31 UTCEPSS rescore
  31. 2026-07-05 02:30 UTCEPSS rescore
  32. 2026-07-04 20:07 UTCGHSA enrichment
  33. 2026-07-04 07:13 UTCGHSA enrichment
  34. 2026-07-04 06:31 UTCEPSS rescore
  35. 2026-07-04 06:31 UTCEPSS rescore
  36. 2026-07-03 18:17 UTCGHSA enrichment
  37. 2026-07-03 05:23 UTCGHSA enrichment
  38. 2026-07-02 16:23 UTCEG score recompute
  39. 2026-07-02 16:23 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54409?
CVE-2026-54409 is a high vulnerability published on July 2, 2026. A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.
When was CVE-2026-54409 disclosed?
CVE-2026-54409 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54409 actively exploited?
CVE-2026-54409 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54409?
CVE-2026-54409 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-54409?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54409, 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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