CVE-2026-115793: high-severity vulnerability in RT-Labs P-Net
Resource exhaustion from RPC sessions kept for requests to unknown interface
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
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 does not release the RPC session allocated for an RPC request that names an unknown interface or object UUID, and does not start a timeout for it. Repeated requests with different activity UUIDs exhaust the available sessions. Once they are exhausted the device no longer answers new RPC requests, including Endpoint Mapper Lookup and Connect, until it is restarted. 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%