CVE-2026-34910

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score elevated to 10.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-23), indicating real-world exploitation has been confirmed by US federal agencies. a secondary CVSS source baseline 10.0 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
Trending — 4 sources updated this weekExploited in the wild
10.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 87%CVSS: 10.0Exploit: cisa kev · epss top5pct · epss high · public exploitExposed: 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 could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CVSS v3
10.0
EG Score
10.0(high)
EG Risk
100(Act)
EG Risk 100/100SSVC: Act

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
Severity100% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
87%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

May 22, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Sep 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
generic🔴 Active Exploitation

CVE-2026-34910 Exploitation ITW – building a botnet (MIRAI) – PwnDefend

https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34910
generic
https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b

Vendor Advisories for CVE-2026-34910(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 48× in last 7d / 216× 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.

Showing the most recent 100 of 646 total refreshes for this CVE.

  1. 2026-09-05 03:38 UTCGHSA enrichment
  2. 2026-09-04 23:31 UTCGHSA enrichment
  3. 2026-09-04 19:23 UTCGHSA enrichment
  4. 2026-09-04 17:38 UTCCISA KEV update
  5. 2026-09-04 15:15 UTCEG score recompute
  6. 2026-09-04 15:15 UTCGHSA enrichment
  7. 2026-09-04 11:08 UTCGHSA enrichment
  8. 2026-09-04 07:01 UTCEG score recompute
  9. 2026-09-04 07:00 UTCGHSA enrichment
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-04 02:52 UTCGHSA enrichment
  12. 2026-09-03 22:44 UTCGHSA enrichment
  13. 2026-09-03 18:34 UTCGHSA enrichment
  14. 2026-09-03 14:26 UTCGHSA enrichment
  15. 2026-09-03 10:18 UTCGHSA enrichment
  16. 2026-09-03 06:11 UTCGHSA enrichment
  17. 2026-09-03 02:03 UTCGHSA enrichment
  18. 2026-09-02 21:54 UTCGHSA enrichment
  19. 2026-09-02 17:44 UTCGHSA enrichment
  20. 2026-09-02 17:33 UTCCISA KEV update
  21. 2026-09-02 13:37 UTCGHSA enrichment
  22. 2026-09-02 09:29 UTCGHSA enrichment
  23. 2026-09-02 05:19 UTCGHSA enrichment
  24. 2026-09-02 01:12 UTCGHSA enrichment
  25. 2026-09-01 21:02 UTCGHSA enrichment
Show 75 more
  1. 2026-09-01 16:54 UTCGHSA enrichment
  2. 2026-09-01 12:45 UTCGHSA enrichment
  3. 2026-09-01 08:35 UTCGHSA enrichment
  4. 2026-09-01 04:28 UTCGHSA enrichment
  5. 2026-09-01 00:19 UTCGHSA enrichment
  6. 2026-08-31 20:10 UTCGHSA enrichment
  7. 2026-08-31 16:01 UTCGHSA enrichment
  8. 2026-08-31 14:19 UTCCISA KEV update
  9. 2026-08-31 11:53 UTCGHSA enrichment
  10. 2026-08-31 07:46 UTCGHSA enrichment
  11. 2026-08-31 03:39 UTCGHSA enrichment
  12. 2026-08-30 23:32 UTCGHSA enrichment
  13. 2026-08-30 19:25 UTCEG score recompute
  14. 2026-08-30 19:25 UTCGHSA enrichment
  15. 2026-08-30 19:17 UTCEPSS rescore
  16. 2026-08-30 15:18 UTCGHSA enrichment
  17. 2026-08-30 11:11 UTCGHSA enrichment
  18. 2026-08-30 07:04 UTCGHSA enrichment
  19. 2026-08-30 02:57 UTCGHSA enrichment
  20. 2026-08-29 22:50 UTCGHSA enrichment
  21. 2026-08-29 18:42 UTCGHSA enrichment
  22. 2026-08-29 14:34 UTCGHSA enrichment
  23. 2026-08-29 10:27 UTCGHSA enrichment
  24. 2026-08-29 06:20 UTCGHSA enrichment
  25. 2026-08-29 02:13 UTCGHSA enrichment
  26. 2026-08-28 22:04 UTCEG score recompute
  27. 2026-08-28 22:03 UTCGHSA enrichment
  28. 2026-08-28 21:41 UTCEPSS rescore
  29. 2026-08-28 17:53 UTCGHSA enrichment
  30. 2026-08-28 13:45 UTCGHSA enrichment
  31. 2026-08-28 09:37 UTCGHSA enrichment
  32. 2026-08-28 05:27 UTCGHSA enrichment
  33. 2026-08-28 01:18 UTCGHSA enrichment
  34. 2026-08-27 21:10 UTCGHSA enrichment
  35. 2026-08-27 17:22 UTCCISA KEV update
  36. 2026-08-27 17:03 UTCGHSA enrichment
  37. 2026-08-27 12:55 UTCGHSA enrichment
  38. 2026-08-27 08:47 UTCGHSA enrichment
  39. 2026-08-27 04:39 UTCGHSA enrichment
  40. 2026-08-27 00:30 UTCGHSA enrichment
  41. 2026-08-26 20:23 UTCGHSA enrichment
  42. 2026-08-26 17:41 UTCCISA KEV update
  43. 2026-08-26 16:14 UTCEG score recompute
  44. 2026-08-26 16:14 UTCGHSA enrichment
  45. 2026-08-26 14:46 UTCEPSS rescore
  46. 2026-08-26 12:06 UTCGHSA enrichment
  47. 2026-08-26 07:59 UTCGHSA enrichment
  48. 2026-08-26 03:51 UTCGHSA enrichment
  49. 2026-08-25 23:44 UTCGHSA enrichment
  50. 2026-08-25 19:36 UTCGHSA enrichment
  51. 2026-08-25 15:29 UTCEG score recompute
  52. 2026-08-25 15:29 UTCGHSA enrichment
  53. 2026-08-25 13:49 UTCEPSS rescore
  54. 2026-08-25 11:22 UTCGHSA enrichment
  55. 2026-08-25 07:13 UTCGHSA enrichment
  56. 2026-08-25 03:05 UTCGHSA enrichment
  57. 2026-08-24 22:57 UTCGHSA enrichment
  58. 2026-08-24 18:52 UTCCISA KEV update
  59. 2026-08-24 18:49 UTCGHSA enrichment
  60. 2026-08-24 14:42 UTCEG score recompute
  61. 2026-08-24 14:42 UTCGHSA enrichment
  62. 2026-08-24 10:35 UTCEG score recompute
  63. 2026-08-24 10:35 UTCGHSA enrichment
  64. 2026-08-24 06:28 UTCGHSA enrichment
  65. 2026-08-24 02:20 UTCGHSA enrichment
  66. 2026-08-23 22:13 UTCGHSA enrichment
  67. 2026-08-23 18:05 UTCGHSA enrichment
  68. 2026-08-23 13:58 UTCGHSA enrichment
  69. 2026-08-23 09:51 UTCGHSA enrichment
  70. 2026-08-23 05:44 UTCGHSA enrichment
  71. 2026-08-23 01:37 UTCEG score recompute
  72. 2026-08-23 01:37 UTCGHSA enrichment
  73. 2026-08-23 00:19 UTCEPSS rescore
  74. 2026-08-22 21:30 UTCGHSA enrichment
  75. 2026-08-22 17:23 UTCGHSA enrichment

Publicly available exploits

(2 references)

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

  • GitHub PoCBoreas37/CVE-2026-34910-PoC
    First seen Aug 9, 2026

    CVE-2026-34910/34909 — UniFi OS unauth RCE + file read via ..%2f auth bypass (CVSS 10.0, KEV, Mirai ITW)

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-34910.yaml
    First seen Jan 1, 2026

    UniFi OS Server - Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2026-34910?
CVE-2026-34910 is a critical vulnerability published on May 22, 2026. A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
When was CVE-2026-34910 disclosed?
CVE-2026-34910 was first published in the National Vulnerability Database on May 22, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34910 actively exploited?
Yes. CISA added CVE-2026-34910 to the Known Exploited Vulnerabilities catalog on June 23, 2026, affecting Ubiquiti UniFi OS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-34910?
CVE-2026-34910 has a CVSS v3 base score of 10.0 (NVD).
Which products are affected by CVE-2026-34910?
CVE-2026-34910 affects Ubiquiti UniFi OS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-34910?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34910, 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-2026-34910

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