P-Net before 1.0.3 passes the application alarm callback a data length derived from the variable part length field of a received RTA alarm frame without checking it against the length of the received frame. A short frame can make the callback receive a length of up to 65507 bytes. An application that copies the reported number of bytes reads past the end of the receive buffer. The attacker must have established an Application Relationship and requires ADJACENT network access. Applications that do not use the alarm data are not affected.
Advisories

No advisories yet.

Fixes

Solution

Upgrade to P-Net 1.0.3 or later.


Workaround

No workaround given by the vendor.

History

Thu, 29 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
Description P-Net before 1.0.3 passes the application alarm callback a data length derived from the variable part length field of a received RTA alarm frame without checking it against the length of the received frame. A short frame can make the callback receive a length of up to 65507 bytes. An application that copies the reported number of bytes reads past the end of the receive buffer. The attacker must have established an Application Relationship and requires ADJACENT network access. Applications that do not use the alarm data are not affected.
Title Alarm data length not validated against received frame length
Weaknesses CWE-130
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: rt-labs

Published:

Updated: 2026-10-29T15:43:55.798Z

Reserved: 2026-10-23T14:31:00.895Z

Link: CVE-2026-115794

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-29T16:17:58.987

Modified: 2026-10-29T16:26:50.750

Link: CVE-2026-115794

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses