Vulnerability-Lookup

GHSA-5W3W-J62R-PW52

Vulnerability from github – Published: 2026-08-19 21:30 – Updated: 2026-08-19 21:30

Details

Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it.

Severity

8.5 (High)


                  
                    CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-75616"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T21:17:37Z",
    "severity": "HIGH"
  },
  "details": "An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise.\n\n\n\n\n\n\nSuccessful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device\u00a0and network traffic passing through it.",
  "id": "GHSA-5w3w-j62r-pw52",
  "modified": "2026-08-19T21:30:38Z",
  "published": "2026-08-19T21:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75616"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/faq/5252"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/archer-c20/v6.46/#Firmware"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-75616 (GCVE-0-2026-75616)

Vulnerability from cvelistv5 – Published: 2026-08-19 20:44 – Updated: 2026-08-20 15:26

Title

Command Injection in Router Web Management Interface

Summary

An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise. Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it.

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-20 15:15 UTC

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')

Assigner

TPLink mitre root

References

3 references

URL	Tags
https://www.tp-link.com/us/support/download/arche…	patch
https://www.tp-link.com/en/support/download/arche…	patch
https://www.tp-link.com/en/support/faq/5252/	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
TP-Link Systems Inc.	Archer C20 v6	Affected: 0 , < EU_0.9.1 Build 260811 (custom) Affected: 0 , < US_0.9.1 Build 260812 (custom) Affected: 0 , < RU_0.9.1 Build 260812 (custom)

Credits

Daniil Gordeev (totekuh)

Show details on NVD website

JSON

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                "id": "CVE-2026-75616",
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                  },
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-20T15:15:42.024258Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-5W3W-J62R-PW52

CVE-2026-75616 (GCVE-0-2026-75616)

Tags

Sightings

Nomenclature