by Kastro
Paper/Archive/CVE-2026-62646

CVE-2026-62646

Siemens Reyrolle 7SR5 — A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70).

EPSS 0.5%CVSS 9.1
critical.is priorityof 100
36
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 43.5.435 × 208.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Reyrolle 7SR5< V2.70V2.70CNA

Scores by source

siemens (CNA)9.1CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
siemens (CNA)7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refcert-portal.siemens.com/productcert/html/ssa-142885.html