Status: UPDATED
| Advisory ID: CVE-2026-62647
Key Details
| CVE | CVE-2026-62647 |
| CVSS Score / Version | 7.4 (High) / CVSS v3.1 |
| Updated | 2026-09-14 |
| CVSS Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is high; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | Siemens Reyrolle 7SR5 |
| Classified as | CWE-20 (Improper Input Validation) |
Affected Products, Subsystems & Sectors
| Subsystems | General OT |
| Sectors | Multiple |
What to Know
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. (NVD)
What to Do
Monitor Siemens's web page for any future patch releases.
References