{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-123957",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-11-06T17:07:11.931Z",
        "datePublished": "2026-11-07T08:15:13.072Z",
        "dateUpdated": "2026-11-07T08:15:13.072Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-11-07T08:15:13.072Z"
            },
            "title": "TOTOLINK CA300-PoE cstecgi.cgi setIpQosRules buffer overflow",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-120",
                            "lang": "en",
                            "description": "Buffer Overflow"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-119",
                            "lang": "en",
                            "description": "Memory Corruption"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "TOTOLINK",
                    "product": "CA300-PoE",
                    "versions": [
                        {
                            "version": "6.2c.884",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:o:totolink:ca300-poe_firmware:*:*:*:*:*:*:*:*"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 9.4,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P",
                        "baseSeverity": "CRITICAL"
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                        "version": "3.1",
                        "baseScore": 9.9,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C",
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                        "version": "2.0",
                        "baseScore": 9,
                        "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C"
                    }
                }
            ],
            "timeline": [
                {
                    "time": "2026-11-06T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
                },
                {
                    "time": "2026-11-06T01:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
                },
                {
                    "time": "2026-11-06T18:12:32.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "wxhwxhwxh_mie (VulDB User)",
                    "type": "reporter"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/vuln/432020",
                    "name": "VDB-432020 | TOTOLINK CA300-PoE cstecgi.cgi setIpQosRules buffer overflow",
                    "tags": [
                        "vdb-entry",
                        "technical-description"
                    ]
                },
                {
                    "url": "https://vuldb.com/vuln/432020/cti",
                    "name": "VDB-432020 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://vuldb.com/cve/CVE-2026-123957",
                    "name": "CVE-2026-123957 | CVE Analysis and Report",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://vuldb.com/submit/1033672",
                    "name": "Submit #1033672 | TOTOLINK CA300-PoE CA300-PoE_Firmware V6.2c.884 Buffer Overflow",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setIpQosRules-3f953a41781f801195e5e07dfe7488b9?source=copy_link",
                    "tags": [
                        "exploit"
                    ]
                },
                {
                    "url": "https://www.totolink.net/",
                    "tags": [
                        "product"
                    ]
                }
            ],
            "x_generator": [
                "VulDB PVTS v202611"
            ]
        }
    }
}