CVE-2025-27803

MEDIUMCVSS 6.5
6.5CVSS
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 6.5Exploit: None knownExposed: 0

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

The devices do not implement any authentication for the web interface or the MQTT server. An attacker who has network access to the device immediately gets administrative access to the devices and can perform arbitrary administrative actions and reconfigure the devices or potentially gain access to sensitive data.

CVSS v3
6.5
EchelonGraph score
Not yet assessedEchelonGraph has no severity assessment for this CVE yet. This is not a rating of zero.
EG Score
—
EG Risk
—
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

May 21, 2025

Last Modified

June 17, 2026

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 26× 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 167 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2025-27803?
CVE-2025-27803 is a medium vulnerability published on May 21, 2025. The devices do not implement any authentication for the web interface or the MQTT server. An attacker who has network access to the device immediately gets administrative access to the devices and can perform arbitrary administrative actions and reconfigure the devices or potentially gain access to…
When was CVE-2025-27803 disclosed?
CVE-2025-27803 was first published in the National Vulnerability Database on May 21, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2025-27803?
CVE-2025-27803 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2025-27803?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-27803, 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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