CVE-2026-58457

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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: 3%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(medium)
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
3%
EPSS %ILE
86%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Sep 7, 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 10× in last 7d / 119× 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 400 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCJ4ck3LSyN-Gen2/CVE-2026-58457
    First seen Jul 16, 2026

    PoC tools for CVE-2026-58457: Unauthenticated OS Command Injection leading to remote root on Shenzhen Aitemi M300 Wi-Fi Repeater (MT02). Includes exploit, validator, payload generator, and Metasploit module. For educational and authorized pentesting only.

    Open source ↗

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 3% probability of exploitation in the next 30 days, which ranks it in the top 13.7% 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-58457

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