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CVE-2026-124759 Alarm frames are accepted from any source address

7.1 high

High (7.1) in rt-labs p-net.

On this page
P-Net before 1.0.4 routes a received RTA alarm frame to an Application Relationship using only the destination alarm reference in the frame, without checking the source of the frame. A host with ADJACENT network access can abort an established Application Relationship with a single alarm ERROR frame, or deliver forged alarm notifications with chosen type, slot, subslot, USI and payload to the application.

Severity

CVSS 4.0

7.1 high
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
CWE
CWE-346 Origin Validation Error
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Assigned by
rt-labs (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

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CVE-2026-124759

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
RT-Labs P-Netbefore 1.0.4
RT-Labs P-Net1.0.4 and later

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-346 (16).

History

  1. The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

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