What’s Vulnerable › Vulnerabilities
CVE-2026-62647
- Severity: high (CVSS 7.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-08 · updated 2026-09-14
- Weakness: CWE-20
Description
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 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.
Affected products
- Siemens Reyrolle 7SR5: before V2.70 — fixed in V2.70
How to fix
Upgrade to a fixed version: Siemens Reyrolle 7SR5 V2.70. Check the vendor advisory for mitigations.
References
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