{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1638","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-01-29T16:56:25.779Z","datePublished":"2026-01-29T23:32:11.350Z","dateUpdated":"2026-02-23T09:08:03.393Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-02-23T09:08:03.393Z"},"title":"Tenda AC21 mDMZSetCfg command injection","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-77","lang":"en","description":"Command Injection"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-74","lang":"en","description":"Injection"}]}],"affected":[{"vendor":"Tenda","product":"AC21","versions":[{"version":"1.1.1.1","status":"affected"},{"version":"1.dmzip","status":"affected"},{"version":"16.03.08.16","status":"affected"}],"cpes":["cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in Tenda AC21 1.1.1.1/1.dmzip/16.03.08.16. The impacted element is the function mDMZSetCfg of the file /goform/mDMZSetCfg. The manipulation of the argument dmzIp results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks."}],"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"}}],"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":"2026-02-05T05:52:10.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"LX-LX (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/?id.343417","name":"VDB-343417 | Tenda AC21 mDMZSetCfg command injection","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.343417","name":"VDB-343417 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.740871","name":"Submit #740871 | Tenda AC21 V16.03.08.16 Command Injection","tags":["third-party-advisory"]},{"url":"https://github.com/LX-LX88/cve/issues/26","tags":["broken-link","exploit","issue-tracking"]},{"url":"https://www.tenda.com.cn/","tags":["product"]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-30T18:25:39.642410Z","id":"CVE-2026-1638","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-30T18:25:59.761Z"}}]}}