{"id":"CVE-2021-25667","state":"PUBLISHED","title":"A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and","description":"A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.","publishedAt":"2021-03-15T17:03:31.000Z","updatedAt":"2026-06-02T19:24:47.966Z","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:N/A:H","source":"CISA-ADP"},"assigner":"siemens","products":["Siemens RUGGEDCOM RM1224","Siemens SCALANCE M-800","Siemens SCALANCE S615","Siemens SCALANCE SC-600 Family","Siemens SCALANCE XB-200","Siemens SCALANCE XC-200","Siemens SCALANCE XF-200BA","Siemens SCALANCE XM400","Siemens SCALANCE XP-200","Siemens SCALANCE XR-300WG","Siemens SCALANCE XR500"],"affected":[{"vendor":"Siemens","product":"RUGGEDCOM RM1224","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M-800","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE S615","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE SC-600 Family","versions":[{"version":"All versions >= V2.0 and < V2.1.3","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XB-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XC-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XF-200BA","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XM400","versions":[{"version":"All versions < V6.2","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XP-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XR-300WG","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XR500","versions":[{"version":"All versions < V6.2","status":"affected"}]}],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf","https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T19:48:10.461Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/25xxx/CVE-2021-25667.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-25667","state":"PUBLISHED","datePublished":"2021-03-15T17:03:31.000Z","dateUpdated":"2026-06-02T19:24:47.966Z","assignerShortName":"siemens","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateReserved":"2021-01-21T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active."}],"affected":[{"vendor":"Siemens","product":"RUGGEDCOM RM1224","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M-800","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE S615","versions":[{"version":"All versions >= V4.3 and < V6.4","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE SC-600 Family","versions":[{"version":"All versions >= V2.0 and < V2.1.3","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XB-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XC-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XF-200BA","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XM400","versions":[{"version":"All versions < V6.2","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XP-200","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XR-300WG","versions":[{"version":"All versions < V4.1","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE XR500","versions":[{"version":"All versions < V6.2","status":"affected"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf","tags":["x_refsource_MISC"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"siemens","dateUpdated":"2021-04-22T20:42:20.000Z","orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"productcert@siemens.com","ID":"CVE-2021-25667","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"RUGGEDCOM RM1224","version":{"version_data":[{"version_value":"All versions >= V4.3 and < V6.4"}]}},{"product_name":"SCALANCE M-800","version":{"version_data":[{"version_value":"All versions >= V4.3 and < V6.4"}]}},{"product_name":"SCALANCE S615","version":{"version_data":[{"version_value":"All versions >= V4.3 and < V6.4"}]}},{"product_name":"SCALANCE SC-600 Family","version":{"version_data":[{"version_value":"All versions >= V2.0 and < V2.1.3"}]}},{"product_name":"SCALANCE XB-200","version":{"version_data":[{"version_value":"All versions < V4.1"}]}},{"product_name":"SCALANCE XC-200","version":{"version_data":[{"version_value":"All versions < V4.1"}]}},{"product_name":"SCALANCE XF-200BA","version":{"version_data":[{"version_value":"All versions < V4.1"}]}},{"product_name":"SCALANCE XM400","version":{"version_data":[{"version_value":"All versions < V6.2"}]}},{"product_name":"SCALANCE XP-200","version":{"version_data":[{"version_value":"All versions < V4.1"}]}},{"product_name":"SCALANCE XR-300WG","version":{"version_data":[{"version_value":"All versions < V4.1"}]}},{"product_name":"SCALANCE XR500","version":{"version_data":[{"version_value":"All versions < V6.2"}]}}]},"vendor_name":"Siemens"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-121: Stack-based Buffer Overflow"}]}]},"references":{"reference_data":[{"name":"https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf","refsource":"MISC","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf"},{"name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03","refsource":"MISC","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T20:11:27.468Z"}},{"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:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-02T19:24:14.973158Z","id":"CVE-2021-25667","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-02T19:24:47.966Z"}}]}}}