CVE-2026-62646

High7.4Published on September 8, 2026

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.

CVSS score7.4 / 10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness type (CWE)CWE-331

Vulnerabilities

Siemens Reyrolle 7SR5 Flaws Expose Energy Devices to Authentication Bypass and Remote Crashes

CISA warns 14 flaws in Siemens Reyrolle 7SR5 before V2.70, including critical CVE-2026-62645 auth bypass and remote crash bugs. Upgrade advised.

Sep 17, 202601:235 min readRead

This product uses the NVD API but is not endorsed or certified by the NVD.

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Siemens Reyrolle 7SR5 Flaws Expose Energy Devices to Authentication Bypass and Remote Crashes