{"id":"CVE-2025-3666","state":"PUBLISHED","title":"TOTOLINK A3700R cstecgi.cgi setDdnsCfg access control","description":"A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this issue is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","publishedAt":"2025-04-16T03:31:07.271Z","updatedAt":"2025-04-16T13:27:42.335Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulDB"},"assigner":"VulDB","products":["TOTOLINK A3700R"],"affected":[{"vendor":"TOTOLINK","product":"A3700R","versions":[{"version":"9.1.2u.5822_B20200513","status":"affected"}]}],"references":["https://vuldb.com/?id.304844","https://vuldb.com/?ctiid.304844","https://vuldb.com/?submit.551298","https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setDdnsCfg-1cb53a41781f8001b9c0f345a120e2e7?pvs=4","https://www.totolink.net/"],"weaknesses":["CWE-284","CWE-266"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/3xxx/CVE-2025-3666.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-3666","state":"PUBLISHED","datePublished":"2025-04-16T03:31:07.271Z","dateUpdated":"2025-04-16T13:27:42.335Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2025-04-15T20:46:48.219Z"},"containers":{"cna":{"title":"TOTOLINK A3700R cstecgi.cgi setDdnsCfg access control","descriptions":[{"lang":"en","value":"A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this issue is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."},{"lang":"de","value":"Eine Schwachstelle wurde in TOTOLINK A3700R 9.1.2u.5822_B20200513 gefunden. Sie wurde als kritisch eingestuft. Hierbei geht es um die Funktion setDdnsCfg der Datei /cgi-bin/cstecgi.cgi. Dank Manipulation mit unbekannten Daten kann eine improper access controls-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff über das Netzwerk. Der Exploit steht zur öffentlichen Verfügung."}],"affected":[{"vendor":"TOTOLINK","product":"A3700R","versions":[{"version":"9.1.2u.5822_B20200513","status":"affected"}]}],"references":[{"url":"https://vuldb.com/?id.304844","name":"VDB-304844 | TOTOLINK A3700R cstecgi.cgi setDdnsCfg access control","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.304844","name":"VDB-304844 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.551298","name":"Submit #551298 | TOTOLINK A3700R V9.1.2u.5822_B20200513 Improper Access Controls","tags":["third-party-advisory"]},{"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setDdnsCfg-1cb53a41781f8001b9c0f345a120e2e7?pvs=4","tags":["exploit"]},{"url":"https://www.totolink.net/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","type":"CWE","lang":"en","description":"Improper Access Controls"}]},{"descriptions":[{"cweId":"CWE-266","type":"CWE","lang":"en","description":"Incorrect Privilege Assignment"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2025-04-16T03:31:07.271Z"},"timeline":[{"time":"2025-04-15T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2025-04-15T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2025-04-15T22:52:06.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"yhryhryhr_mie (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-16T13:27:25.505060Z","id":"CVE-2025-3666","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-16T13:27:42.335Z"}}]}}}