{"id":"CVE-2026-82555","state":"PUBLISHED","title":"TOTOLINK N600R Authentication cstecgi.cgi loginAuth random values","description":"A vulnerability has been found in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function loginAuth of the file /web_cste/cgi-bin/cstecgi.cgi of the component Authentication Handler. Such manipulation leads to insufficiently random values. It is possible to launch the attack remotely. This attack is characterized by high complexity. It is stated that the exploitability is difficult. The exploit has been disclosed to the public and may be used.","publishedAt":"2026-08-30T17:30:10.581Z","updatedAt":"2026-08-31T22:04:18.589Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["TOTOLINK N600R"],"affected":[{"vendor":"TOTOLINK","product":"N600R","versions":[{"version":"4.3.0cu.7866_B20220506","status":"affected"}],"cpes":["cpe:2.3:o:totolink:n600r_firmware:*:*:*:*:*:*:*:*"],"modules":["Authentication Handler"]}],"references":["https://vuldb.com/vuln/397071","https://vuldb.com/vuln/397071/cti","https://vuldb.com/cve/CVE-2026-82555","https://vuldb.com/submit/891698","https://github.com/b1uerry/cves/tree/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token","https://github.com/b1uerry/cves/blob/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token/poc.py","https://www.totolink.net/"],"weaknesses":["CWE-330","CWE-310"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82555.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82555","state":"PUBLISHED","datePublished":"2026-08-30T17:30:10.581Z","dateUpdated":"2026-08-31T22:04:18.589Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-29T18:54:51.440Z"},"containers":{"cna":{"title":"TOTOLINK N600R Authentication cstecgi.cgi loginAuth random values","descriptions":[{"lang":"en","value":"A vulnerability has been found in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function loginAuth of the file /web_cste/cgi-bin/cstecgi.cgi of the component Authentication Handler. Such manipulation leads to insufficiently random values. It is possible to launch the attack remotely. This attack is characterized by high complexity. It is stated that the exploitability is difficult. The exploit has been disclosed to the public and may be used."}],"affected":[{"vendor":"TOTOLINK","product":"N600R","versions":[{"version":"4.3.0cu.7866_B20220506","status":"affected"}],"cpes":["cpe:2.3:o:totolink:n600r_firmware:*:*:*:*:*:*:*:*"],"modules":["Authentication Handler"]}],"references":[{"url":"https://vuldb.com/vuln/397071","name":"VDB-397071 | TOTOLINK N600R Authentication cstecgi.cgi loginAuth random values","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/397071/cti","name":"VDB-397071 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-82555","name":"CVE-2026-82555 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/891698","name":"Submit #891698 | TOTOLINK N600R v4.3.0cu.7866_B20220506 Use of Insufficiently Random Values","tags":["third-party-advisory"]},{"url":"https://github.com/b1uerry/cves/tree/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token","tags":["related"]},{"url":"https://github.com/b1uerry/cves/blob/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token/poc.py","tags":["exploit"]},{"url":"https://www.totolink.net/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.7,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.7,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-330","type":"CWE","lang":"en","description":"Insufficiently Random Values"}]},{"descriptions":[{"cweId":"CWE-310","type":"CWE","lang":"en","description":"Cryptographic Issues"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-30T17:30:10.581Z"},"timeline":[{"time":"2026-08-29T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-29T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-29T21:00:03.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"bluerry (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T21:50:29.685518Z","id":"CVE-2026-82555","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":"2026-08-31T22:04:18.589Z"}}]}}}