CVE-2019-25651

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-03-28. the CNA's CVSS baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

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

Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.

CVSS v3
8.3
EG Score
8.3(medium)
EPSS
0.2%
KEV
Not listed

Published

March 27, 2026

Last Modified

May 25, 2026

Advisory Details (2)

Auto-updated May 3, 2026
No patch confirmed yet.
generic

Ubiquiti UniFi Devices Use of AES-CBC Allows Key Recovery and Unauthorized Device Control | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ubiquiti-unifi-devices-use-of-aes-cbc-allows-key-recovery-and-unauthorized-device-control
generic
https://community.ui.com/releases/Security-Advisory-Bulletin-004-004/462e561b-9efd-4c23-bfa7-53d59cc64ecb

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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 108 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2019-25651?
CVE-2019-25651 is a high vulnerability published on March 27, 2026. Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic…
When was CVE-2019-25651 disclosed?
CVE-2019-25651 was first published in the National Vulnerability Database on March 27, 2026, with the most recent update on May 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25651 actively exploited?
CVE-2019-25651 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-25651?
CVE-2019-25651 has a CVSS v4.0 base score of 8.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2019-25651?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25651, 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.

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