CVE-2026-115793 Resource exhaustion from RPC sessions kept for requests to unknown interface
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115793?
CVE-2026-115793 is a high-severity vulnerability in RT-Labs P-Net, published on 29 Oct 2026.
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.
Weakness: CWE-772
Which versions are affected by CVE-2026-115793?
How do I fix CVE-2026-115793?
No fix has been published for CVE-2026-115793 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115793 being exploited?
There is no known exploitation of CVE-2026-115793 in the wild and no public exploit code.
Sources
Also known as GHSA-q647-2g3c-gqwj.