{"id":"CVE-2026-5102","state":"PUBLISHED","title":"Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg command injection","description":"A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument qos_up_bw results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.","publishedAt":"2026-03-30T00:00:20.436Z","updatedAt":"2026-03-30T15:56:03.600Z","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 A3300R"],"affected":[{"vendor":"Totolink","product":"A3300R","versions":[{"version":"17.0.0cu.557_b20221024","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a3300r_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":["https://vuldb.com/vuln/354127","https://vuldb.com/vuln/354127/cti","https://vuldb.com/submit/779129","https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_40/README.md","https://www.totolink.net/"],"weaknesses":["CWE-77","CWE-74"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5102.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5102","state":"PUBLISHED","datePublished":"2026-03-30T00:00:20.436Z","dateUpdated":"2026-03-30T15:56:03.600Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-29T17:50:47.089Z"},"containers":{"cna":{"title":"Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg command injection","descriptions":[{"lang":"en","value":"A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument qos_up_bw results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks."}],"affected":[{"vendor":"Totolink","product":"A3300R","versions":[{"version":"17.0.0cu.557_b20221024","status":"affected"}],"cpes":["cpe:2.3:o:totolink:a3300r_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":[{"url":"https://vuldb.com/vuln/354127","name":"VDB-354127 | Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg command injection","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/354127/cti","name":"VDB-354127 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/779129","name":"Submit #779129 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection","tags":["third-party-advisory"]},{"url":"https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_40/README.md","tags":["exploit"]},{"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":"2026-03-30T00:00:20.436Z"},"timeline":[{"time":"2026-03-29T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-29T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-29T19:56:07.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"LtzHuster2 (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-30T15:55:49.220268Z","id":"CVE-2026-5102","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":"2026-03-30T15:56:03.600Z"}}]}}}