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High 7.4Published Sep 8, 2026

CVE-2026-62647A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70).

Updated under an hour ago ()

Does this affect you?

It affects Siemens Reyrolle 7SR5. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-20
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
siemens
NVD analysis
Deferred
Record last updated
Sep 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Siemens Reyrolle 7SR5
siemens:reyrolle_7sr5 (from the name)
before V2.70
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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