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Medium 4.2Published Oct 7, 2025

CVE-2025-3449A Generation of Predictable Numbers or Identifiers vulnerability in the SDM component of B&R Automation Runtime versions before 6.4 may allow an unauthenticated network-based attacker to take over al…

Updated under an hour ago ()

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No exploitation reported and no EPSS estimate yet.

A Generation of Predictable Numbers or Identifiers vulnerability in the SDM component of B&R Automation Runtime versions before 6.4 may allow an unauthenticated network-based attacker to take over already established sessions.

CVSS
4.2 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE)
CWE-340
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Deferred
Record last updated
Oct 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

No affected products are listed yet.

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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