CVE-2026-111731: high-severity vulnerability in RT-Labs P-Net
Infinite loop when reading PDPortDataCheck record of subslot 0
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
RT-Labs · P-NetRelated CVEs — RT-Labs P-Net
In the same product, most dangerous first.
CVE-2025-32399MEDIUMCVE-2025-32399EPSS 0.5%CVE-2025-32405HIGHCVE-2025-32405EPSS 0.5%CVE-2025-32400HIGHCVE-2025-32400EPSS 0.4%CVE-2025-32397HIGHCVE-2025-32397EPSS 0.4%CVE-2025-32396HIGHCVE-2025-32396EPSS 0.4%CVE-2026-112200HIGHResource exhaustion from unreleased AR and RPC session on RPC requests with incorrect endiannessEPSS 0.4%