CVE-2026-111733 PUBLISHED

NULL pointer dereference on implicit read of AR specific record index

Assigner: rt-labs
Reserved: 16.10.2026 Published: 29.10.2026 Updated: 29.10.2026

P-Net before 1.0.3 dereferences a NULL AR pointer when handling an implicit read request without a valid target AR UUID for a record index that requires an AR (AR specific indices 0xE000-0xEFFF, and the expected identification data of a slot or subslot). A remote unauthenticated attacker can send such a request to crash the device (denial of service).

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	RT-Labs
Product	P-Net
Versions	Default: unaffected affected from 0 to 1.0.3 (excl.)

Solutions

Upgrade to P-Net 1.0.3 or later.

Credits

f0rw4rd (quellsec.dev) finder

References

Cybersecurity advisory for P-Net

Problem Types

CWE-476 NULL Pointer Dereference CWE