{"id":"CVE-2026-1623","state":"PUBLISHED","title":"Totolink A7000R cstecgi.cgi setUpgradeFW command injection","description":"A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.","publishedAt":"2026-01-29T20:32:08.374Z","updatedAt":"2026-02-23T09:07:06.095Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Totolink A7000R"],"affected":[{"vendor":"Totolink","product":"A7000R","versions":[{"version":"4.1cu.4154","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a7000r_firmware:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/?id.343382","https://vuldb.com/?ctiid.343382","https://vuldb.com/?submit.740767","https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md","https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#poc","https://www.totolink.net/"],"weaknesses":["CWE-77","CWE-74"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1623.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1623","state":"PUBLISHED","datePublished":"2026-01-29T20:32:08.374Z","dateUpdated":"2026-02-23T09:07:06.095Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-01-29T14:39:06.213Z"},"containers":{"cna":{"title":"Totolink A7000R cstecgi.cgi setUpgradeFW command injection","descriptions":[{"lang":"en","value":"A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks."}],"affected":[{"vendor":"Totolink","product":"A7000R","versions":[{"version":"4.1cu.4154","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a7000r_firmware:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://vuldb.com/?id.343382","name":"VDB-343382 | Totolink A7000R cstecgi.cgi setUpgradeFW command injection","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.343382","name":"VDB-343382 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.740767","name":"Submit #740767 | TOTOLINK A7000R V4.1cu.4154 Command Injection","tags":["third-party-advisory"]},{"url":"https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md","tags":["exploit","patch"]},{"url":"https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#poc","tags":["exploit","patch"]},{"url":"https://www.totolink.net/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":6.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":6.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","type":"CWE","lang":"en","description":"Command Injection"}]},{"descriptions":[{"cweId":"CWE-74","type":"CWE","lang":"en","description":"Injection"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-02-23T09:07:06.095Z"},"timeline":[{"time":"2026-01-29T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-01-29T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-01-30T05:07:04.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"xuanyu (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-29T21:19:04.724100Z","id":"CVE-2026-1623","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":"2026-01-29T21:19:26.419Z"}}]}}}