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CVE-2026-111731EUVD-2026-113005

Infinite loop when reading PDPortDataCheck record of subslot 0

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.0.3
None on Exploit-DB, Metasploit or GitHub

Summary

P-Net, an open-source PROFINET device stack used in industrial automation equipment, is affected by this vulnerability. A remote, unauthenticated attacker can send a specific read request that causes the device to hang in an endless loop, making it stop responding and causing a denial of service.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

P-Net before 1.0.3 enters an infinite loop when handling a read request for the PDPortDataCheck record with subslot 0 (whole module). The loop over the ports never advanced to the next port, so the request never completes and the device stops responding. A remote unauthenticated attacker can use this to cause a denial of service.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • RT-Labs P-Net

    fixed in 1.0.3

References 1

rt-labs.com