CVE-2026-58457

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-01. 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.

Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02) contains an unauthenticated OS command injection vulnerability that allows network-adjacent attackers to execute arbitrary shell commands by injecting unsanitized input through the smacfilter_conf handler in the commuos web backend. Attackers can append semicolon-delimited payloads to the name, enable, or mac GET parameters, which are passed without sanitization into sprintf() to build uci shell commands executed via doSystemCmdComlib(), granting full root-level control of the device.

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
74%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp | Advisories | VulnCheck

https://www.vulncheck.com/advisories/shenzhen-aitemi-m300-mt02-unauthenticated-os-command-injection-via-protocol-csp
generic
https://www.aliexpress.us/item/3256806767641280.html
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-2026-58457(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 39× in last 7d / 169× 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 169 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58457?
CVE-2026-58457 is a critical vulnerability published on July 1, 2026. Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02) contains an unauthenticated OS command injection vulnerability that allows network-adjacent attackers to execute arbitrary shell commands by injecting unsanitized input through the smacfilter_conf handler in the commuos web backend.…
When was CVE-2026-58457 disclosed?
CVE-2026-58457 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58457 actively exploited?
CVE-2026-58457 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 25.8% of all scored CVEs.
What is the CVSS score of CVE-2026-58457?
CVE-2026-58457 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-58457?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58457, 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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