Vulnerability · Published Oct 29, 2026 · Assigned by rt-labs

CVE-2026-115793Resource exhaustion from RPC sessions kept for requests to unknown interface

High 8.7

In plain English

A high-severity security flaw in P-Net from RT-Labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.4%top 65.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
RT-Labs	P-Net	0 – before 1.0.3

Weakness: CWE-772 · Vector: 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

References

Cybersecurity advisory for P-Net