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Vulnerability record · CVE-2026-62646 · published 8 September 2026

CVE-2026-62646: A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70).

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.

9.1 CVSS 4.0 Critical EPSS 0.51% · top 58.9% CWE-331 · CWE-331 Deferred
9.1CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
10 Sep 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://cert-portal.siemens.com/productcert/html/ssa-142885.html

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Source: NIST National Vulnerability Database (record CVE-2026-62646), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.