TI-2026-82632 Aliases CVE-2026-115793 GHSA-q647-2g3c-gqwj

Resource exhaustion from RPC sessions kept for unknown interface requests

MEDIUM 44CWE-772Published 2026-10-29 · Updated 2026-11-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-772.

Summary

RT-Labs 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 it starts no timeout for it. Repeated requests with different activity UUIDs exhaust the available sessions, after which the device stops answering new RPC requests until it is restarted. A remote unauthenticated attacker can cause a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00396 34th percentileScored 2026-11-07

Fix Fixed P-Net (RT-Labs): 1.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
RT-Labs	P-Net	before 1.0.3	1.0.3	Patch available	CNA

P-Net VendorRT-Labs Affected before 1.0.3 Fixed in 1.0.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:rt-labs:p-net::::::::	—	—	RT-Labs

cpe:2.3:a:rt-labs:p-net:*:*:*:*:*:*:*:* Versions — — ·RT-Labs

Remediation

Update RT-Labs P-Net to version 1.0.3, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Fix · CNA P-Net (RT-Labs) Fixed in 1.0.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-29
RT-Labs P-Net 1.0.3
11 records Highest priority Priority MEDIUM 5 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2026-82626 Out-of-bounds write when parsing AR Vendor Block requests in RT-Labs P-NetPriority MEDIUM 48
- TI-2026-82630 NULL pointer dereference in RT-Labs P-Net on implicit read requestsPriority MEDIUM 44
- TI-2026-82627 NULL pointer dereference in P-Net lets remote attackers crash devicesPriority MEDIUM 44
Show all 11 records →

Timeline

2026-10-29 Threatist record created from CVE-2026-115793
2026-10-29 Alias added: GHSA-q647-2g3c-gqwj
2026-10-31 Priority changed: MEDIUM → LOW
2026-11-05 CISA SSVC decision points changed
2026-11-05 Priority changed: LOW → MEDIUM

References

Other 1

Cybersecurity advisory for P-Net

TI-2026-82626 Out-of-bounds write when parsing AR Vendor Block requests in RT-Labs P-Net CVSS 4.0CRITICAL 9.3
TI-2026-82630 NULL pointer dereference in RT-Labs P-Net on implicit read requests CVSS 4.0HIGH 8.7
TI-2026-82627 NULL pointer dereference in P-Net lets remote attackers crash devices CVSS 4.0HIGH 8.7
TI-2026-82625 Infinite loop in RT-Labs P-Net PDPortDataCheck record handling CVSS 4.0HIGH 8.7
TI-2025-23482 Out-of-bounds write in RT-Labs P-Net CVSS 3.1CRITICAL 9.8
TI-2025-23481 Out-of-bounds write in RT-Labs P-Net CVSS 3.1CRITICAL 9.8

See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences