FKIE_CVE-2026-36738

Vulnerability from fkie_nvd - Published: 2026-05-13 16:16 - Updated: 2026-06-30 19:02
Severity
6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
cve@mitre.orghttps://github.com/N0tMilk/vulnerability-researchThird Party Advisory
cve@mitre.orghttps://github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-2026-36738Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/N0tMilk/vulnerability-research/tree/main/IoT/CVE-2026-36738Exploit, Third Party Advisory
Impacted products
Vendor Product Version
u-speed t18-21k_firmware 1.0
u-speed t18-21k -
To clipboard 

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          "vendor": "n/a",
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  "descriptions": [
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    }
  ],
  "id": "CVE-2026-36738",
  "lastModified": "2026-06-30T19:02:27.033",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "PHYSICAL",
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          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "scope": "UNCHANGED",
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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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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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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