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
10.0
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 79%CVSS: 10.0Exploit: 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 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)
EPSS
99.5%
KEV
⚠ Exploited

Published

May 22, 2026

Last Modified

June 24, 2026

Advisory Details (3)

Auto-updated Jul 9, 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 91× in last 7d / 317× 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 529 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • 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 June 24, 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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