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    CVE-2026-62646

    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.

    Published:Sep 8, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 8, 2026
    EPSS Score:0.00315
    CVSS Score:7.4

    Affected Products

    Vendor
    Siemens
    Product
    Reyrolle 7sr5

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-331 Insufficient Entropy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-59 Session Credential Falsification through Prediction

    Related CVEs

    CVE-2026-62654 (CVSS 7) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A special maintenance mode can be…
    CVE-2026-62653 (CVSS 7) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The input received over a proprie…
    CVE-2026-62652 (CVSS 6.9) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The device firmware contains bina…
    CVE-2026-62650 (CVSS 8.7) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). Server-side authorization checks …
    CVE-2026-62649 (CVSS 8.7) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The web server does not properly …
    CVE-2026-62648 (CVSS 8.7) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The length of the URL component c…
    CVE-2026-62647 (CVSS 9.3) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used…
    CVE-2026-62645 (CVSS 9.3) — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). Information is exposed through th…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-62646 — Siemens (Critical 9.1) | CVE-DB