CVE-2026-62646: Siemens Reyrolle 7sr5

High severity, CVSS 7.4. EPSS: 0.5% chance of exploitation in the next 30 days.

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 products

• Siemens Reyrolle 7sr5: before V2.70 (fixed in V2.70)

Published 2026-09-08. Last modified 2026-09-10.