FKIE_CVE-2026-16448

Vulnerability from fkie_nvd - Published: 2026-07-21 15:16 - Updated: 2026-07-21 17:07
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Summary
A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. The affected element is the function cgi_check_rsync_rw of the file /cgi-bin/remote_backup.cgi. The manipulation of the argument ip results in command injection. The attack can be executed remotely. The exploit has been made public and could be used.
References
cna@vuldb.comhttps://ucn9h68n9289.feishu.cn/docx/OfhNdwzvXoBlJBxDIW7clVmjnuh?from=from_copylink
cna@vuldb.comhttps://vuldb.com/cve/CVE-2026-16448
cna@vuldb.comhttps://vuldb.com/submit/858469
cna@vuldb.comhttps://vuldb.com/vuln/380827
cna@vuldb.comhttps://vuldb.com/vuln/380827/cti
cna@vuldb.comhttps://www.dlink.com/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-120:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-120",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dnr-202l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNR-202L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-315l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-315L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-320:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-320",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-320l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-320L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-320lw:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-320LW",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-321:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-321",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dnr-322l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNR-322L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-323:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-323",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-325:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-325",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-326:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-326",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-327l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-327L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dnr-326:*:*:*:*:*:*:*:*"
          ],
          "product": "DNR-326",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-340l:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-340L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-343:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-343",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-345:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-345",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-726-4:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-726-4",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-1100-4:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-1100-4",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-1200-05:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-1200-05",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:d-link:dns-1550-04:*:*:*:*:*:*:*:*"
          ],
          "product": "DNS-1550-04",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "20260205"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. The affected element is the function cgi_check_rsync_rw of the file /cgi-bin/remote_backup.cgi. The manipulation of the argument ip results in command injection. The attack can be executed remotely. The exploit has been made public and could be used."
    }
  ],
  "id": "CVE-2026-16448",
  "lastModified": "2026-07-21T17:07:04.447",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16448",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-21T14:52:40.667873Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-21T15:16:33.587",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://ucn9h68n9289.feishu.cn/docx/OfhNdwzvXoBlJBxDIW7clVmjnuh?from=from_copylink"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-16448"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/858469"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/380827"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/380827/cti"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://www.dlink.com/"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        },
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.