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
Trending — 3 sources updated this weekElevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

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

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
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
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 patch confirmed 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 13× in last 7d / 70× 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 186 total refreshes for this CVE.

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

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 CVE-2026-36176 disclosed?
CVE-2026-36176 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-36176 actively exploited?
CVE-2026-36176 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.4% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-36176, 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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