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    4 vulnerabilities found for t18-21k_firmware by u-speed

    CVE-2026-36741 (GCVE-0-2026-36741)

    Vulnerability from nvd – Published: 2026-05-13 00:00 – Updated: 2026-05-14 12:38
    VLAI
    Summary
    U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Command Injection. The Network Time Protocol (NTP) configuration interface does not properly sanitize user-supplied input. An authenticated user with permission to configure NTP settings can inject arbitrary system commands through crafted input fields. These commands are executed with elevated privileges, leading to potential full system compromise.
    Severity
    7.2 (High)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.2,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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                "timestamp": "2026-05-14T12:38:29.083272Z",
                "version": "2.0.3"
              },
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          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-77",
                "description": "CWE-77 Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-14T12:38:32.916Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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            "url": "https://github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-2026-36741"
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        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
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      ],
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        }
      ],
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        "dateUpdated": "2026-05-13T15:37:12.349Z",
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      },
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    "dateReserved": "2026-04-06T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
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}

    CVE-2026-36738 (GCVE-0-2026-36738)

    Vulnerability from nvd – Published: 2026-05-13 00:00 – Updated: 2026-05-14 13:53
    VLAI
    Summary
    U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Incorrect Access Control. The device exposes a UART interface that lacks authentication, authorization, or access control mechanisms. An attacker with physical access to the UART pins can connect to the interface and gain unrestricted access to device functionality.
    Severity
    6.8 (Medium)
    CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-284 - Improper Access Control
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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          {
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              "attackComplexity": "LOW",
              "attackVector": "PHYSICAL",
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              "baseScore": 6.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
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              "scope": "UNCHANGED",
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            }
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                "timestamp": "2026-05-14T13:53:35.314691Z",
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        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
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  },
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}

    CVE-2026-36738 (GCVE-0-2026-36738)

    Vulnerability from cvelistv5 – Published: 2026-05-13 00:00 – Updated: 2026-05-14 13:53
    VLAI
    Summary
    U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Incorrect Access Control. The device exposes a UART interface that lacks authentication, authorization, or access control mechanisms. An attacker with physical access to the UART pins can connect to the interface and gain unrestricted access to device functionality.
    Severity
    6.8 (Medium)
    CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-284 - Improper Access Control
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "PHYSICAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
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            "url": "https://github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-2026-36738"
          }
        ],
        "title": "CISA ADP Vulnrichment"
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    ],
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        }
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}

    CVE-2026-36741 (GCVE-0-2026-36741)

    Vulnerability from cvelistv5 – Published: 2026-05-13 00:00 – Updated: 2026-05-14 12:38
    VLAI
    Summary
    U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Command Injection. The Network Time Protocol (NTP) configuration interface does not properly sanitize user-supplied input. An authenticated user with permission to configure NTP settings can inject arbitrary system commands through crafted input fields. These commands are executed with elevated privileges, leading to potential full system compromise.
    Severity
    7.2 (High)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Show details on NVD website
    To clipboard 

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        "title": "CISA ADP Vulnrichment"
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