CVE-2026-124760
Alarm receiver stops delivering alarms after a malformed alarm notification
Description
P-Net before 1.0.4 sets the alarm receiver state to waiting for confirmation before the data of a received alarm notification is parsed. If the parsing fails the state is not restored, and later alarm notifications of the same priority are discarded without acknowledge until the Application Relationship is released. The Application Relationship and the cyclic data exchange keep working. The attacker must be able to send an alarm notification in the context of an established Application Relationship and requires ADJACENT network access.
INFO
Published Date :
Nov. 13, 2026, 1:23 p.m.
Last Modified :
Nov. 13, 2026, 1:23 p.m.
Remotely Exploit :
No
Source :
rt-labs
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | LOW | 4b71179a-3b92-4a9d-b9fc-af8b8ed579ee |
Solution
- Update P-Net to version 1.0.4 or later.
- Ensure proper alarm notification parsing logic.
- Verify Application Relationship state management.
- Limit network access to adjacent network segments.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-124760 vulnerability anywhere in the article.