{"id":"CVE-2021-33737","state":"PUBLISHED","title":"A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 E","description":"A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.","publishedAt":"2021-09-14T10:47:38.000Z","updatedAt":"2024-08-03T23:58:22.953Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:C","source":"siemens"},"assigner":"siemens","products":["Siemens SIMATIC CP 343-1 (incl. SIPLUS variants)","Siemens SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)","Siemens SIMATIC CP 343-1 ERPC","Siemens SIMATIC CP 343-1 Lean (incl. SIPLUS variants)","Siemens SIMATIC CP 443-1","Siemens SIMATIC CP 443-1 Advanced","Siemens SIPLUS NET CP 443-1","Siemens SIPLUS NET CP 443-1 Advanced"],"affected":[{"vendor":"Siemens","product":"SIMATIC CP 343-1 (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 ERPC","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 Lean (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1 Advanced","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS NET CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS NET CP 443-1 Advanced","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]}],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf"],"weaknesses":["CWE-119"],"ingestedAt":"2026-10-29T19:48:36.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/33xxx/CVE-2021-33737.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-33737","state":"PUBLISHED","datePublished":"2021-09-14T10:47:38.000Z","dateUpdated":"2024-08-03T23:58:22.953Z","assignerShortName":"siemens","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateReserved":"2021-05-28T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations."}],"affected":[{"vendor":"Siemens","product":"SIMATIC CP 343-1 (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 ERPC","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 343-1 Lean (incl. SIPLUS variants)","defaultStatus":"unknown","versions":[{"version":"All versions","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC CP 443-1 Advanced","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS NET CP 443-1","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS NET CP 443-1 Advanced","defaultStatus":"unknown","versions":[{"version":"All versions < V3.3","status":"affected"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:C","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","lang":"en","description":"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer","type":"CWE"}]}],"providerMetadata":{"shortName":"siemens","orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateUpdated":"2023-04-11T09:01:52.372Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:58:22.953Z"}}]}}}