CVE-2026-79911 (GCVE-0-2026-79911)

Vulnerability from cvelistv5 – Published: 2026-08-25 22:15 – Updated: 2026-08-25 22:15
VLAI
Title
TOTOLINK N600R CGI cstecgi.cgi setSystemConfig stack-based overflow
Summary
A security vulnerability has been detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The affected element is the function setSystemConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument Hostname leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
CWE
References
Impacted products
Vendor Product Version CPE status
TOTOLINK N600R Affected: 4.3.0cu.7647_B20210106
    cpe:2.3:o:totolink:n600r_firmware:*:*:*:*:*:*:*:*
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          ],
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          "vendor": "TOTOLINK",
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              "version": "4.3.0cu.7647_B20210106"
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        }
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          "tags": [
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        },
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          "time": "2026-08-25T17:02:30.000Z",
          "value": "VulDB entry last update"
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      "title": "TOTOLINK N600R CGI cstecgi.cgi setSystemConfig stack-based overflow",
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      ]
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  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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    "datePublished": "2026-08-25T22:15:13.200Z",
    "dateReserved": "2026-08-25T14:57:17.413Z",
    "dateUpdated": "2026-08-25T22:15:13.200Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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  }
}



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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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  • 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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