{"id":"CVE-2026-27664","state":"PUBLISHED","title":"A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), SICORE Base system (All versions < V26.10.0). The affected application conta","description":"A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), SICORE Base system (All versions < V26.10.0). The affected application contains an out-of-bounds write vulnerability while parsing specially crafted XML inputs. This could allow an unauthenticated attacker to exploit this issue by sending a malicious XML request, which may cause the service to crash, resulting in a denial-of-service condition.","publishedAt":"2026-03-26T14:03:21.993Z","updatedAt":"2026-04-14T18:24:39.273Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"siemens"},"assigner":"siemens","products":["Siemens CPCI85 Central Processing/Communication","Siemens SICORE Base system"],"affected":[{"vendor":"Siemens","product":"CPCI85 Central Processing/Communication","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V26.10","versionType":"custom"}]},{"vendor":"Siemens","product":"SICORE Base system","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V26.10.0","versionType":"custom"}]}],"references":["https://cert-portal.siemens.com/productcert/html/ssa-246443.html","http://seclists.org/fulldisclosure/2026/Apr/7"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/27xxx/CVE-2026-27664.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27664","state":"PUBLISHED","datePublished":"2026-03-26T14:03:21.993Z","dateUpdated":"2026-04-14T18:24:39.273Z","assignerShortName":"siemens","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateReserved":"2026-02-23T10:07:00.531Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), SICORE Base system (All versions < V26.10.0). The affected application contains an out-of-bounds write vulnerability while parsing specially crafted XML inputs. This could allow an unauthenticated attacker to exploit this issue by sending a malicious XML request, which may cause the service to crash, resulting in a denial-of-service condition."}],"affected":[{"vendor":"Siemens","product":"CPCI85 Central Processing/Communication","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V26.10","versionType":"custom"}]},{"vendor":"Siemens","product":"SICORE Base system","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V26.10.0","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-246443.html"}],"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","baseScore":7.5,"baseSeverity":"HIGH"}},{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","baseScore":8.7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"providerMetadata":{"shortName":"siemens","orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","dateUpdated":"2026-03-26T14:03:21.993Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-26T17:50:28.782194Z","id":"CVE-2026-27664","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-26T18:24:41.814Z"}},{"title":"CVE Program Container","references":[{"url":"http://seclists.org/fulldisclosure/2026/Apr/7"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-04-14T18:24:39.273Z"}}]}}}