CVE-2026-58457 (GCVE-0-2026-58457)

Vulnerability from cvelistv5 – Published: 2026-07-01 19:22 – Updated: 2026-07-06 14:01
VLAI Shadowserver Previdian
Title
Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp
Summary
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.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 14:01 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater Affected: * (custom)
guessed Create a notification for this product.
Date Public
2026-06-28 00:00
Credits
Conrad Franke
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3dc7d7d7-4402-4941-8b1f-b3fc7fe5825a

Vulnerability ID: CVE-2026-58457

Status: Confirmed

Status Updated: 2026-09-07 23:39 UTC

Exploited: Yes

Characteristics
Severity: 93.0
Timestamps
First Seen: 2026-09-07
Asserted: 2026-09-07
Last Seen: 2026-09-07
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Shenzhen Aitemi / M300 Wi-Fi Repeater | Class: router | Severity: Critical (CVSS 9.3) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-07: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class router
7D Avg 0
Vendor Shenzhen Aitemi
30D Avg 0
90D Avg 0
Product M300 Wi-Fi Repeater
Cisa Kev no
Connections 1
Observation Date 2026-09-07
Vulnerability Class CVSS
Vulnerability Score 9.3
Vulnerability Severity Critical
References
Created: 2026-09-09 01:01 UTC | Updated: 2026-09-09 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c59f5e6e-9bb1-40f4-84c7-3619b7b61f71

Vulnerability ID: CVE-2026-58457

Status: Confirmed

Status Updated: 2026-09-04 15:31 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-04
Asserted: 2026-09-04
Scope
Notes: Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp | Affected: Shenzhen Aitemi E Commerce / M300 Wi-Fi Repeater | CVSS: 9.3 (CRITICAL) | EPSS: 0.02939 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp
Vendor Shenzhen Aitemi E Commerce
Product M300 Wi-Fi Repeater
Added Date 2026-09-04T15:31:49.181Z
Cvss Score 9.3
Epss Score 0.02939
Cvss Severity CRITICAL
Epss Percentile 0.86185
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-09-05 16:00 UTC | Updated: 2026-09-05 16:00 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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