CVE-2026-36176

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Elevated
7.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.1Exploit: Elevated riskExposed services: Not assessed

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

GNCC GP5 v7.1.76 was discovered to store pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

Published

June 4, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
🔬 Proof of concept available. No fix on record yet.
generic🟡 PoC Available

IoT-Vulnerability-Research-Public/GNCC-GP5-T23/README.md at main · BadChemical/IoT-Vulnerability-Research-Public · GitHub

https://github.com/BadChemical/IoT-Vulnerability-Research-Public/blob/main/GNCC-GP5-T23/README.md
generic

The domain name gp5.com might be for sale. | 0595.com

http://gp5.com

Vendor Advisories for CVE-2026-36176(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 7× in last 7d / 23× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 218 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 119 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  7. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  16. 2026-09-17 19:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  17. 2026-09-16 14:08 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  18. 2026-09-16 05:15 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-09-15 03:11 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-09-14 05:28 UTCEG score recompute
  21. 2026-09-14 05:28 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  22. 2026-09-12 15:01 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-09-11 14:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  24. 2026-09-11 09:37 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  25. 2026-09-10 09:34 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
Show 74 more
  1. 2026-09-08 22:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  2. 2026-09-07 16:01 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  3. 2026-09-06 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-09-04 05:06 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-09-01 13:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-08-28 21:41 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-08-27 14:25 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  8. 2026-08-26 14:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-08-25 03:35 UTCEG score recompute
  10. 2026-08-25 03:35 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  11. 2026-08-23 12:45 UTCEG score recompute
  12. 2026-08-23 12:45 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  13. 2026-08-23 00:19 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-08-21 23:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-08-21 14:38 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  16. 2026-08-20 23:11 UTCEG score recompute
  17. 2026-08-20 23:11 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  18. 2026-08-20 22:55 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-08-20 09:59 UTCEG score recompute
  20. 2026-08-20 09:59 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  21. 2026-08-19 17:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-08-17 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-08-17 06:42 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  24. 2026-08-16 17:03 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  25. 2026-08-16 03:50 UTCEG score recompute
  26. 2026-08-16 03:50 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  27. 2026-08-16 02:14 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  28. 2026-08-15 14:38 UTCEG score recompute
  29. 2026-08-15 14:38 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  30. 2026-08-15 01:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  31. 2026-08-15 01:12 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  32. 2026-08-14 12:00 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  33. 2026-08-13 22:49 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  34. 2026-08-13 03:24 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  35. 2026-08-12 14:13 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  36. 2026-08-12 01:01 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  37. 2026-08-11 11:50 UTCEG score recompute
  38. 2026-08-11 11:50 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  39. 2026-08-11 00:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  40. 2026-08-10 22:36 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  41. 2026-08-10 07:06 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  42. 2026-08-09 17:52 UTCEG score recompute
  43. 2026-08-09 17:52 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  44. 2026-08-09 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  45. 2026-08-09 04:41 UTCEG score recompute
  46. 2026-08-09 04:41 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  47. 2026-08-08 16:37 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  48. 2026-08-08 15:29 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  49. 2026-08-08 02:09 UTCEG score recompute
  50. 2026-08-08 02:09 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  51. 2026-08-07 12:57 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  52. 2026-08-06 23:46 UTCEG score recompute
  53. 2026-08-06 23:46 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  54. 2026-08-06 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  55. 2026-08-06 09:44 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  56. 2026-08-05 20:31 UTCEG score recompute
  57. 2026-08-05 20:31 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  58. 2026-08-05 19:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  59. 2026-08-04 19:16 UTCEG score recompute
  60. 2026-08-04 19:16 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  61. 2026-08-04 15:10 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  62. 2026-08-03 18:40 UTCEG score recompute
  63. 2026-08-03 18:40 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  64. 2026-08-03 10:36 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  65. 2026-08-03 04:36 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  66. 2026-08-02 15:24 UTCEG score recompute
  67. 2026-08-02 15:24 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  68. 2026-08-02 02:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  69. 2026-08-02 02:12 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  70. 2026-08-01 13:00 UTCEG score recompute
  71. 2026-08-01 13:00 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  72. 2026-08-01 04:16 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  73. 2026-07-31 18:42 UTCGHSA enrichmentGHSA-82x6-h78j-2frc · GitHub severity HIGH · GitHub CVSS 7.1
  74. 2026-07-31 05:30 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-36176?
CVE-2026-36176 is a high vulnerability published on June 4, 2026. GNCC GP5 v7.1.76 was discovered to store pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.
When was the CVE record for CVE-2026-36176 published?
The CVE record for CVE-2026-36176 was published on June 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 22, 2026; the record at its source may have been updated since.
Is CVE-2026-36176 actively exploited?
CVE-2026-36176 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-36176?
CVE-2026-36176 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-36176?
No fix for CVE-2026-36176 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-36176 are linked in the Vendor Advisories panel on this page.

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