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

CVE-2026-111733NULL pointer dereference on implicit read of AR specific record index

High 8.7

In plain English

A high-severity null pointer dereference 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 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).

Affected products (as reported)

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

Weakness: CWE-476 · 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