Vulnerability-Lookup

GHSA-Q3J6-99QM-JJMM

Vulnerability from github – Published: 2026-09-10 21:31 – Updated: 2026-09-10 21:31

Details

Successful exploitation could allow an authenticated remote attacker to write files to unintended locations, potentially overwriting or modifying files accessible to the affected service; arbitrary code execution has not been demonstrated.

Severity

4.8 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-10T21:17:44Z",
    "severity": "MODERATE"
  },
  "details": "An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or\u00a0modifying\u00a0files\naccessible to the affected service; arbitrary code execution has not\nbeen\u00a0demonstrated.",
  "id": "GHSA-q3j6-99qm-jjmm",
  "modified": "2026-09-10T21:31:38Z",
  "published": "2026-09-10T21:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76652"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5292"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/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-2026-76652 (GCVE-0-2026-76652)

Vulnerability from cvelistv5 – Published: 2026-09-10 20:12 – Updated: 2026-09-10 20:27

Title

Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600

Summary

An authenticated directory traversal vulnerability in file upload functionality has been identified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file information, an authenticated remote attacker with access to the affected upload functionality could upload a specially crafted file and cause it to be written outside the intended directory. Successful exploitation could allow an authenticated remote attacker to write files to unintended locations, potentially overwriting or modifying files accessible to the affected service; arbitrary code execution has not been demonstrated.

Severity

4.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-10 20:26 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

TPLink mitre root

References

3 references

URL	Tags
https://www.tp-link.com/en/support/download/tl-mr…	patch
https://www.tp-link.com/en/support/download/arche…	patch
https://www.tp-link.com/us/support/faq/5292/	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
TP-Link Systems Inc.	TL-MR6400 v8	Affected: 0 , < 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n (custom)
TP-Link Systems Inc.	Archer MR600	Affected: v3 , < MR600(EU)_V3_1.4.0 Build 260827 (custom) Affected: v5 , < MR600(EU)_V5_1.9.0 Build 260805 (custom) Affected: v2 , < MR600(EU)_V2_1.12.0 Build 2600826 (custom)

Credits

Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications

Show details on NVD website

JSON

To clipboard

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.