{"id":"CVE-2025-12240","state":"PUBLISHED","title":"TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow","description":"A security vulnerability has been detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.","publishedAt":"2025-10-27T06:32:14.914Z","updatedAt":"2025-10-27T20:13:13.431Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["TOTOLINK A3300R"],"affected":[{"vendor":"TOTOLINK","product":"A3300R","versions":[{"version":"17.0.0cu.557_B20221024","status":"affected"}]}],"references":["https://vuldb.com/?id.329910","https://vuldb.com/?ctiid.329910","https://vuldb.com/?submit.673722","https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setDmzCfg.md","https://www.totolink.net/"],"weaknesses":["CWE-120","CWE-119"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/12xxx/CVE-2025-12240.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-12240","state":"PUBLISHED","datePublished":"2025-10-27T06:32:14.914Z","dateUpdated":"2025-10-27T20:13:13.431Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2025-10-25T17:11:42.221Z"},"containers":{"cna":{"title":"TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow","descriptions":[{"lang":"en","value":"A security vulnerability has been detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used."},{"lang":"de","value":"In TOTOLINK A3300R 17.0.0cu.557_B20221024 wurde eine Schwachstelle gefunden. Hiervon betroffen ist die Funktion setDmzCfg der Datei /cgi-bin/cstecgi.cgi. Dank der Manipulation des Arguments ip mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Ein Angriff ist aus der Distanz möglich. Der Exploit steht zur öffentlichen Verfügung."}],"affected":[{"vendor":"TOTOLINK","product":"A3300R","versions":[{"version":"17.0.0cu.557_B20221024","status":"affected"}]}],"references":[{"url":"https://vuldb.com/?id.329910","name":"VDB-329910 | TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.329910","name":"VDB-329910 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.673722","name":"Submit #673722 | TOTOLINK A3300R V17.0.0cu.557_B20221024 Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setDmzCfg.md","tags":["exploit"]},{"url":"https://www.totolink.net/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"HIGH"}},{"cvssV3_1":{"version":"3.1","baseScore":8.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":8.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","type":"CWE","lang":"en","description":"Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2025-10-27T06:32:14.914Z"},"timeline":[{"time":"2025-10-25T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2025-10-25T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2025-10-25T19:17:05.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"wxhwxhwxh_mie (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-27T20:13:01.720017Z","id":"CVE-2025-12240","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-27T20:13:13.431Z"}}]}}}