{"id":"CVE-2022-34840","state":"PUBLISHED","title":"Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected produ","description":"Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.","publishedAt":"2022-12-07T00:00:00.000Z","updatedAt":"2025-04-23T16:10:12.366Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"jpcert","products":["BUFFALO INC. Buffalo network devices"],"affected":[{"vendor":"BUFFALO INC.","product":"Buffalo network devices","versions":[{"version":"WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.","status":"affected"}]}],"references":["https://www.buffalo.jp/news/detail/20221003-01.html","https://jvn.jp/en/vu/JVNVU92805279/index.html"],"weaknesses":["CWE-798"],"ingestedAt":"2026-10-29T19:50:14.780Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/34xxx/CVE-2022-34840.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-34840","state":"PUBLISHED","datePublished":"2022-12-07T00:00:00.000Z","dateUpdated":"2025-04-23T16:10:12.366Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2022-09-27T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier."}],"affected":[{"vendor":"BUFFALO INC.","product":"Buffalo network devices","versions":[{"version":"WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.","status":"affected"}]}],"references":[{"url":"https://www.buffalo.jp/news/detail/20221003-01.html"},{"url":"https://jvn.jp/en/vu/JVNVU92805279/index.html"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"Use of hard-coded credentials"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2022-12-07T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.buffalo.jp/news/detail/20221003-01.html","tags":["x_transferred"]},{"url":"https://jvn.jp/en/vu/JVNVU92805279/index.html","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T09:22:10.744Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"ADJACENT_NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-23T16:09:25.218732Z","id":"CVE-2022-34840","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-798","type":"CWE","lang":"en","description":"CWE-798 Use of Hard-coded Credentials"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-23T16:10:12.366Z"}}]}}}