CVE-2026-38571

MEDIUMPre-NVD 4.64.6—
EchelonGraph scoreMEDIUM confidence

Score 4.6 from GitHub Security Advisory published 2026-06-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Elevated
4.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.6Exploit: Elevated riskExposed services: Not assessed

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

Cleartext storage and exposure of WPA2 credentials, and missing authentication on the rr/wr memory read/write commands, in the unauthenticated UART debug console of the Tenda N300 F3 (V603) allow a physically proximate attacker to obtain stored WPA2 credentials in cleartext and to read or write arbitrary memory via the serial console.

CVSS v3
4.6
EG Score
4.6MEDIUMmedium confidence
EG Risk
37
EG Risk 37/100

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
Severity46% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.2%
EPSS %ILE
3rd
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No fix on record yet.
generic🟡 PoC Available

Vulnerability-research/CVE-2026-38571 at main · ZEssaidi-CS/Vulnerability-research · GitHub

https://github.com/ZEssaidi-CS/Vulnerability-research/tree/main/CVE-2026-38571

Vendor Advisories for CVE-2026-38571(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 / 31× 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 176 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 77 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 0.2% · 3rd percentile
  2. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  3. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  4. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  5. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  6. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  7. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  8. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  9. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  10. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  11. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  12. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  13. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  14. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  15. 2026-09-23 07:41 UTCEG score recompute
  16. 2026-09-23 07:41 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  17. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-18 07:07 UTCEG score recompute
  20. 2026-09-18 07:07 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  21. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  23. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  24. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  25. 2026-09-14 00:56 UTCEG score recompute
Show 74 more
  1. 2026-09-14 00:56 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  2. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-09-12 15:20 UTCEG score recompute
  4. 2026-09-12 15:20 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  5. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  6. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  7. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-09-06 14:51 UTCEG score recompute
  12. 2026-09-06 14:51 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  13. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-08-30 19:12 UTCEG score recompute
  19. 2026-08-30 19:12 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  20. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  21. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-08-27 22:52 UTCEG score recompute
  23. 2026-08-27 22:52 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  24. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  25. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  26. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  27. 2026-08-24 12:44 UTCEG score recompute
  28. 2026-08-24 12:44 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  29. 2026-08-23 10:26 UTCEG score recompute
  30. 2026-08-23 10:26 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  31. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  32. 2026-08-22 09:19 UTCEG score recompute
  33. 2026-08-22 09:19 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  34. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  35. 2026-08-21 07:31 UTCEG score recompute
  36. 2026-08-21 07:31 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  37. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  38. 2026-08-20 06:31 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  39. 2026-08-18 23:30 UTCEG score recompute
  40. 2026-08-18 23:30 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  41. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  43. 2026-08-16 21:23 UTCEG score recompute
  44. 2026-08-16 21:23 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  45. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  46. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  47. 2026-08-15 20:23 UTCEG score recompute
  48. 2026-08-15 20:23 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  49. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  50. 2026-08-14 19:22 UTCEG score recompute
  51. 2026-08-14 19:22 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  52. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  53. 2026-08-13 18:22 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  54. 2026-08-12 15:40 UTCEG score recompute
  55. 2026-08-12 15:40 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  56. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  57. 2026-08-11 14:14 UTCEG score recompute
  58. 2026-08-11 14:14 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  59. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  60. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  61. 2026-08-10 13:14 UTCEG score recompute
  62. 2026-08-10 13:14 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  63. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  64. 2026-08-09 12:15 UTCEG score recompute
  65. 2026-08-09 12:15 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  66. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  67. 2026-08-08 11:15 UTCEG score recompute
  68. 2026-08-08 11:15 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  69. 2026-08-07 10:15 UTCEG score recompute
  70. 2026-08-07 10:15 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  71. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  72. 2026-08-06 09:16 UTCEG score recompute
  73. 2026-08-06 09:15 UTCGHSA enrichmentGHSA-h59c-hv3v-mj8q · GitHub CVSS 4.6
  74. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile

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Frequently asked(5)

What is CVE-2026-38571?
CVE-2026-38571 is a medium vulnerability published on June 26, 2026. Cleartext storage and exposure of WPA2 credentials, and missing authentication on the rr/wr memory read/write commands, in the unauthenticated UART debug console of the Tenda N300 F3 (V603) allow a physically proximate attacker to obtain stored WPA2 credentials in cleartext and to read or write…
When was the CVE record for CVE-2026-38571 published?
The CVE record for CVE-2026-38571 was published on June 26, 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 June 29, 2026; the record at its source may have been updated since.
Is CVE-2026-38571 actively exploited?
CVE-2026-38571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-38571?
CVE-2026-38571 has a CVSS v3.1 base score of 4.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38571?
No fix for CVE-2026-38571 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-2026-38571 are linked in the Vendor Advisories panel on this page.

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