CVE-2026-19348

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-09. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A security flaw has been discovered in Shenzhen Aitemi M300 Wi-Fi Repeater r0-ea7890a. Impacted is the function sprintf of the file /protocol.csp?fname=net&opt=smacfilter_conf&function=set&act=add&name=test&enable=1. Performing a manipulation of the argument enable/name/mac results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
83%
KEV
Not listed

Published

August 9, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

GitHub - IEATASICS/m300-repeater-bugs: 0 days located on the M300 mt02 wifi repeater that have not been publicly released. · GitHub

https://github.com/IEATASICS/m300-repeater-bugs

Vendor Advisories for CVE-2026-19348(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 100× 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.

  1. 2026-08-21 04:52 UTCGHSA enrichment
  2. 2026-08-21 00:41 UTCEG score recompute
  3. 2026-08-21 00:41 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 20:29 UTCGHSA enrichment
  6. 2026-08-20 16:17 UTCGHSA enrichment
  7. 2026-08-20 12:05 UTCGHSA enrichment
  8. 2026-08-20 07:45 UTCGHSA enrichment
  9. 2026-08-20 03:34 UTCGHSA enrichment
  10. 2026-08-19 23:22 UTCGHSA enrichment
  11. 2026-08-19 19:10 UTCEG score recompute
  12. 2026-08-19 19:09 UTCGHSA enrichment
  13. 2026-08-19 17:03 UTCEPSS rescore
  14. 2026-08-19 14:54 UTCGHSA enrichment
  15. 2026-08-19 10:42 UTCGHSA enrichment
  16. 2026-08-19 06:23 UTCGHSA enrichment
  17. 2026-08-19 01:52 UTCGHSA enrichment
  18. 2026-08-18 21:40 UTCGHSA enrichment
  19. 2026-08-18 17:25 UTCEG score recompute
  20. 2026-08-18 17:25 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-18 12:46 UTCGHSA enrichment
  23. 2026-08-18 07:59 UTCGHSA enrichment
  24. 2026-08-18 03:46 UTCGHSA enrichment
  25. 2026-08-17 23:35 UTCGHSA enrichment
Show 75 more
  1. 2026-08-17 19:24 UTCGHSA enrichment
  2. 2026-08-17 14:26 UTCEG score recompute
  3. 2026-08-17 14:26 UTCGHSA enrichment
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 10:14 UTCGHSA enrichment
  6. 2026-08-17 06:02 UTCGHSA enrichment
  7. 2026-08-17 01:45 UTCGHSA enrichment
  8. 2026-08-16 21:33 UTCGHSA enrichment
  9. 2026-08-16 17:21 UTCEG score recompute
  10. 2026-08-16 17:21 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 13:09 UTCGHSA enrichment
  13. 2026-08-16 08:57 UTCGHSA enrichment
  14. 2026-08-16 04:45 UTCEG score recompute
  15. 2026-08-16 04:45 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-16 00:34 UTCGHSA enrichment
  18. 2026-08-15 20:22 UTCGHSA enrichment
  19. 2026-08-15 16:10 UTCGHSA enrichment
  20. 2026-08-15 11:58 UTCGHSA enrichment
  21. 2026-08-15 07:46 UTCGHSA enrichment
  22. 2026-08-15 03:34 UTCEG score recompute
  23. 2026-08-15 03:34 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 23:22 UTCGHSA enrichment
  26. 2026-08-14 19:10 UTCGHSA enrichment
  27. 2026-08-14 14:59 UTCGHSA enrichment
  28. 2026-08-14 10:47 UTCGHSA enrichment
  29. 2026-08-14 06:36 UTCGHSA enrichment
  30. 2026-08-14 02:24 UTCGHSA enrichment
  31. 2026-08-13 22:13 UTCEG score recompute
  32. 2026-08-13 22:13 UTCGHSA enrichment
  33. 2026-08-13 22:00 UTCEPSS rescore
  34. 2026-08-13 18:01 UTCGHSA enrichment
  35. 2026-08-13 13:49 UTCGHSA enrichment
  36. 2026-08-13 09:38 UTCGHSA enrichment
  37. 2026-08-13 05:26 UTCGHSA enrichment
  38. 2026-08-13 01:15 UTCGHSA enrichment
  39. 2026-08-12 21:03 UTCGHSA enrichment
  40. 2026-08-12 19:45 UTCGHSA enrichment
  41. 2026-08-12 15:33 UTCEG score recompute
  42. 2026-08-12 15:33 UTCGHSA enrichment
  43. 2026-08-12 13:50 UTCEPSS rescore
  44. 2026-08-12 11:22 UTCGHSA enrichment
  45. 2026-08-12 07:10 UTCGHSA enrichment
  46. 2026-08-12 02:58 UTCGHSA enrichment
  47. 2026-08-11 22:46 UTCGHSA enrichment
  48. 2026-08-11 18:31 UTCGHSA enrichment
  49. 2026-08-11 14:18 UTCEG score recompute
  50. 2026-08-11 14:18 UTCGHSA enrichment
  51. 2026-08-11 13:42 UTCEPSS rescore
  52. 2026-08-11 10:07 UTCGHSA enrichment
  53. 2026-08-11 05:55 UTCGHSA enrichment
  54. 2026-08-11 01:44 UTCEG score recompute
  55. 2026-08-11 01:43 UTCGHSA enrichment
  56. 2026-08-11 00:00 UTCEPSS rescore
  57. 2026-08-10 21:32 UTCEG score recompute
  58. 2026-08-10 21:32 UTCGHSA enrichment
  59. 2026-08-10 21:30 UTCNVD updateCVSS v4 → 8.9
  60. 2026-08-10 21:15 UTCEG score recompute
  61. 2026-08-10 21:15 UTCGHSA enrichment
  62. 2026-08-10 21:14 UTCMITRE cvelistV5CVSS v4 → 9.3
  63. 2026-08-10 21:00 UTCGHSA enrichment
  64. 2026-08-10 16:48 UTCGHSA enrichment
  65. 2026-08-10 12:37 UTCGHSA enrichment
  66. 2026-08-10 08:25 UTCGHSA enrichment
  67. 2026-08-10 04:14 UTCGHSA enrichment
  68. 2026-08-10 00:02 UTCGHSA enrichment
  69. 2026-08-09 19:51 UTCGHSA enrichment
  70. 2026-08-09 15:39 UTCEG score recompute
  71. 2026-08-09 15:39 UTCGHSA enrichment
  72. 2026-08-09 11:28 UTCEG score recompute
  73. 2026-08-09 11:27 UTCNVD updateCVSS v4 → 8.9
  74. 2026-08-09 10:39 UTCEG score recompute
  75. 2026-08-09 10:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19348?
CVE-2026-19348 is a critical vulnerability published on August 9, 2026. A security flaw has been discovered in Shenzhen Aitemi M300 Wi-Fi Repeater r0-ea7890a. Impacted is the function sprintf of the file /protocol.csp?fname=net&opt=smacfilter_conf&function=set&act=add&name=test&enable=1. Performing a manipulation of the argument enable/name/mac results in command…
When was CVE-2026-19348 disclosed?
CVE-2026-19348 was first published in the National Vulnerability Database on August 9, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19348 actively exploited?
CVE-2026-19348 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 16.8% of all scored CVEs.
What is the CVSS score of CVE-2026-19348?
CVE-2026-19348 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-19348?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19348, 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.

Dependency Blast Radius

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