CVE-2026-109683 (GCVE-0-2026-109683)

Vulnerability from cvelistv5 – Published: 2026-11-06 19:26 – Updated: 2026-11-06 19:26
VLAI
Title
UPnP Newline Injection Vulnerability in TP-Link Archer BE805
Summary
A newline injection vulnerability exists in the UPnP service of Archer BE805 v1 such that an adjacent attacker can supply newline characters in a UPnP port-mapping description due to improper sanitization, resulting in possible injection of unintended content into UPnP port-mapping data. Successful exploitation may allow an unauthenticated attacker on the local network to modify runtime UPnP port-mapping information and create spoofed entries within the affected service. The issue is limited to the integrity of UPnP mapping data and does not demonstrate code execution or privilege escalation.
Severity
5.3 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-93 - Improper neutralization of CRLF sequences ('CRLF injection')
Assigner
TPLink CNA
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Archer BE805 v1 Affected: 0 , < V1.6_1.5.1 Build 261102 (custom)
Affected: 0 , < V1.20_1.5.1 Build 261102 (custom)
Create a notification for this product.
Credits
WATARU KOKUBO
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Archer BE805 v1",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "V1.6_1.5.1 Build 261102",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "V1.20_1.5.1 Build 261102",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "WATARU KOKUBO"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA newline\ninjection vulnerability exists in the UPnP service of Archer BE805 v1 such that\nan adjacent attacker can supply newline characters in a UPnP port-mapping\ndescription due to improper sanitization, resulting in possible injection of unintended\ncontent into UPnP port-mapping data.\u003c/p\u003e\u003cp\u003e\n\n\u003c/p\u003e\u003cp\u003eSuccessful\nexploitation may allow an unauthenticated attacker on the local network to\nmodify runtime UPnP port-mapping information and create spoofed entries within\nthe affected service. The issue is limited to the integrity of UPnP mapping\ndata and does not demonstrate code execution or privilege escalation.\u003c/p\u003e"
            }
          ],
          "value": "A newline\ninjection vulnerability exists in the UPnP service of Archer BE805 v1 such that\nan adjacent attacker can supply newline characters in a UPnP port-mapping\ndescription due to improper sanitization, resulting in possible injection of unintended\ncontent into UPnP port-mapping data.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated attacker on the local network to\nmodify runtime UPnP port-mapping information and create spoofed entries within\nthe affected service. The issue is limited to the integrity of UPnP mapping\ndata and does not demonstrate code execution or privilege escalation."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-23",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-23 File Content Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-93",
              "description": "CWE-93 Improper neutralization of CRLF sequences (\u0027CRLF injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T19:26:40.010Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/archer-be805/#Firmware"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/archer-be805/v1.20/#Firmware"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tp-link.com/us/support/faq/5389/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "UPnP Newline Injection Vulnerability in TP-Link Archer BE805",
      "x_generator": {
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      }
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  "cveMetadata": {
    "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-109683",
    "datePublished": "2026-11-06T19:26:40.010Z",
    "dateReserved": "2026-10-12T23:44:19.158Z",
    "dateUpdated": "2026-11-06T19:26:40.010Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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