Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | Reyrolle 7SR5 | < V2.70 | V2.70 |
Advisories 3
- ICSA-26-258-05 Siemens Reyrolle 7SR5 CISA ICS & IT advisories · Sep 15, 2026
- NCSC-2026-0346 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Sep 8, 2026
- SSA-142885 SSA-142885: Multiple Vulnerabilities in Reyrolle 7SR5 Before V2.70 Siemens ProductCERT · Sep 8, 2026