{"id":"CVE-2026-19846","state":"PUBLISHED","title":"TOTOLINK A800R firewall.so cstecgi.cgi setUrlFilterRules stack-based overflow","description":"A vulnerability was identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. The manipulation of the argument url leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.","publishedAt":"2026-08-14T17:15:08.688Z","updatedAt":"2026-08-14T17:31:52.712Z","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 A800R"],"affected":[{"vendor":"TOTOLINK","product":"A800R","versions":[{"version":"4.1.2cu.5137_B20200730","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a800r_firmware:*:*:*:*:*:*:*:*"],"modules":["firewall.so"]}],"references":["https://vuldb.com/vuln/389982","https://vuldb.com/vuln/389982/cti","https://vuldb.com/cve/CVE-2026-19846","https://vuldb.com/submit/869456","https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setUrlFilterRules.md","https://www.totolink.net/"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/19xxx/CVE-2026-19846.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19846","state":"PUBLISHED","datePublished":"2026-08-14T17:15:08.688Z","dateUpdated":"2026-08-14T17:31:52.712Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-14T08:04:38.024Z"},"containers":{"cna":{"title":"TOTOLINK A800R firewall.so cstecgi.cgi setUrlFilterRules stack-based overflow","descriptions":[{"lang":"en","value":"A vulnerability was identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. The manipulation of the argument url leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used."}],"affected":[{"vendor":"TOTOLINK","product":"A800R","versions":[{"version":"4.1.2cu.5137_B20200730","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a800r_firmware:*:*:*:*:*:*:*:*"],"modules":["firewall.so"]}],"references":[{"url":"https://vuldb.com/vuln/389982","name":"VDB-389982 | TOTOLINK A800R firewall.so cstecgi.cgi setUrlFilterRules stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/389982/cti","name":"VDB-389982 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-19846","name":"CVE-2026-19846 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/869456","name":"Submit #869456 | Totolink A800R V4.1.2cu.5137_B20200730 Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setUrlFilterRules.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-121","type":"CWE","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-14T17:15:08.688Z"},"timeline":[{"time":"2026-08-14T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-14T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-14T10:10:05.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"panda_0x1 (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T17:31:40.795017Z","id":"CVE-2026-19846","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-14T17:31:52.712Z"}}]}}}