Quick answers
- Is CVE-2026-111733 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111733 being exploited in the wild.
- How severe is CVE-2026-111733?
- Informational severity, published 29 October 2026.
- Which products and versions are affected?
- RT-Labs P-Net before 1.0.3.
- Is there a fix for CVE-2026-111733?
- Yes: fixed in 1.0.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-111733 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-111733?
- Check whether you run RT-Labs P-Net at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.0.3
Technical details
A NULL pointer dereference vulnerability exists in P-Net's handling of implicit read requests that lack a valid target AR (Application Relationship) UUID when accessing AR-specific record indices (0xE000-0xEFFF) or slot/subslot identification data. An unauthenticated remote attacker can trigger this crash via a crafted PROFINET message, requiring no authentication or user interaction.
Affected products
- rt-labs P-Net before 1.0.3
Timeline
- 2026-10-29: disclosed