{"id":"CVE-2026-62647","title":"A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70)","summary":"A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authentication purposes) that is not initialized wi…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-20"],"vendor":"Siemens","product":"Reyrolle 7SR5","affected":["reyrolle_7sr5 < V2.70"],"published":"2026-09-08","updated":"2026-09-14","sourceUpdated":"2026-09-14T14:17:08.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-62647","references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-142885.html","label":"productcert@siemens.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-14T13:46:37.396990Z"},"epss":0.00337,"epssPercentile":0.27207,"ingestedAt":"2026-09-08T15:33:26.982Z","slug":"CVE-2026-62647","body":"## Overview\n\nA vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authentication purposes) that is not initialized with a True Random Number Generator (TRNG), resulting in a predictable sequence of generated values. This could allow an unauthenticated remote attacker to more easily predict the generated values and impersonate a legitimate authenticated user, potentially gaining unauthorized access to the device.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}