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{"id": "CNVD-2021-94723", "vendorId": null, "type": "cnvd", "bulletinFamily": "cnvd", "title": "D-Link DIR-809 formWlanSetup buffer overflow vulnerability", "description": "A buffer overflow vulnerability exists in the D-Link DIR-809, a dual-band router from D-Link (China), which stems from the failure of the FUN_80040af8 function in the product/formWlanSetup link to effectively determine data boundaries. An attacker could cause a buffer overflow resulting in a denial of service or code execution via a POST request.", "published": "2021-12-04T00:00:00", "modified": "2021-12-06T00:00:00", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 10.0}, "severity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "exploitabilityScore": 3.9, "impactScore": 5.9}, "href": "https://www.cnvd.org.cn/flaw/show/CNVD-2021-94723", "reporter": "China National Vulnerability Database", "references": [], "cvelist": ["CVE-2021-33274"], "immutableFields": [], "lastseen": "2022-11-05T08:10:31", "viewCount": 4, "enchantments": {"dependencies": {"references": [{"type": "checkpoint_advisories", "idList": ["CPAI-2021-1070"]}, {"type": "cve", "idList": ["CVE-2021-33274"]}]}, "score": {"value": 4.7, "vector": "NONE"}, "epss": [{"cve": "CVE-2021-33274", "epss": "0.001630000", "percentile": "0.512320000", "modified": "2023-03-20"}], "vulnersScore": 4.7}, "_state": {"dependencies": 1667637140, "score": 1684017570, "epss": 1679345642}, "_internal": {"score_hash": "92f979e4832d8b3829c8f860e738c3d2"}, "vendorCVSS": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "affectedSoftware": []}

{"cve": [{"lastseen": "2023-05-23T15:28:21", "description": "D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_80040af8 in /formWlanSetup. This vulnerability is triggered via a crafted POST request.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-12-01T22:15:00", "type": "cve", "title": "CVE-2021-33274", "cwe": ["CWE-787"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33274"], "modified": "2021-12-03T13:43:00", "cpe": ["cpe:/o:dlink:dir-809_firmware:1.12wwb03"], "id": "CVE-2021-33274", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-33274", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:o:dlink:dir-809_firmware:1.12wwb03:*:*:*:*:*:*:*"]}], "prion": [{"lastseen": "2023-08-16T05:45:31", "description": "D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_80040af8 in /formWlanSetup. This vulnerability is triggered via a crafted POST request.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-12-01T22:15:00", "type": "prion", "title": "CVE-2021-33274", "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33274"], "modified": "2021-12-03T13:43:00", "id": "PRION:CVE-2021-33274", "href": "https://kb.prio-n.com/vulnerability/CVE-2021-33274", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "checkpoint_advisories": [{"lastseen": "2022-03-13T15:28:59", "description": "A buffer overflow vulnerability exists in D-Link DIR809. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code into the affected system.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "checkpoint_advisories", "title": "D-Link DIR809 Buffer Overflow (CVE-2021-33266; CVE-2021-33267; CVE-2021-33268; CVE-2021-33269; CVE-2021-33270; CVE-2021-33271; CVE-2021-33274)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33266", "CVE-2021-33267", "CVE-2021-33268", "CVE-2021-33269", "CVE-2021-33270", "CVE-2021-33271", "CVE-2021-33274"], "modified": "2022-03-10T00:00:00", "id": "CPAI-2021-1070", "href": "", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}