{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-62646","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","state":"PUBLISHED","assignerShortName":"siemens","dateReserved":"2026-07-14T16:24:23.430Z","datePublished":"2026-09-08T08:11:23.739Z","dateUpdated":"2026-09-10T18:19:25.743Z"},"containers":{"cna":{"providerMetadata":{"orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","shortName":"siemens","dateUpdated":"2026-09-08T08:11:23.739Z"},"descriptions":[{"lang":"en","value":"A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A session identifier is generated using an algorithm with insufficient randomness, resulting in a token with low entropy that can be predicted or brute-forced within a feasible number of attempts. This could allow an unauthenticated remote attacker to derive valid session identifiers and bypass authentication."}],"affected":[{"vendor":"Siemens","product":"Reyrolle 7SR5","versions":[{"status":"affected","version":"0","lessThan":"V2.70","versionType":"custom"}],"defaultStatus":"unknown"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH"}},{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":9.1,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-331","description":"CWE-331: Insufficient Entropy","type":"CWE"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-142885.html"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:19:17.570941Z","id":"CVE-2026-62646","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-10T18:19:25.743Z"}}]}}