What is CVE-2026-62646?

CVE-2026-62646 is a high-severity vulnerability, classified under Insufficient Entropy. CVSS score: 7.4/10. Published 2026-09-08.

How severe is CVE-2026-62646?

High severity. CVSS v3 base score is 7.4 out of 10.

CVE-2026-62646

CVE-2026-62646

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 v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Weakness classification (CWE)

CWE-331 — Insufficient Entropy

References

productcert@siemens.com

Frequently asked questions

What is CVE-2026-62646?: CVE-2026-62646 is a high-severity vulnerability, classified under Insufficient Entropy. CVSS score: 7.4/10. Published 2026-09-08.
How severe is CVE-2026-62646?: High severity. CVSS v3 base score is 7.4 out of 10.