---
title: "CVE-2026-111732: P-Net - Buffer Overflow"
description: "P-Net before 1.0.3 contains a buffer overflow caused by improper length parsing in ARVendorBlock request when PNET_OPTION_AR_VENDOR_BLOCKS is enabled, letting attackers cause denial of service or remote code execution, exploit requires this option enabled."
url: https://panop.io/threat-heartbeat/CVE-2026-111732/
---

# CVE-2026-111732 P-Net - Buffer Overflow

P-Net before 1.0.3 contains a buffer overflow caused by improper length parsing in ARVendorBlock request when PNET\_OPTION\_AR\_VENDOR\_BLOCKS is enabled, letting attackers cause denial of service or remote code execution, exploit requires this option enabled.

CVSS base score 9.3 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.40% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111732)

## Details

Type

Buffer Overflow

Impact

Denial Of Service, Remote Code Execution

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

29 October 2026

Updated

31 October 2026

Weakness

[CWE-787](https://cwe.mitre.org/data/definitions/787.html)

## Vendor fix

Update to version 1.0.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-111732](https://nvd.nist.gov/vuln/detail/CVE-2026-111732)
- [https://rt-labs.com/wp-content/uploads/2026/10/RRTL-261019-01.pdf](https://rt-labs.com/wp-content/uploads/2026/10/RRTL-261019-01.pdf)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)