Vulnerability Description
P-Net before 1.0.3, when built with PNET_OPTION_AR_VENDOR_BLOCKS enabled, parses a data length from a field of the ARVendorBlock request that is not part of the block definition and uses it as the number of bytes to copy into a fixed-size buffer, without comparing it with the buffer size or the block length. A crafted Connect request causes an out-of-bounds write. This can lead to a crash (denial of service) or potentially arbitrary code execution. This option is disabled by default.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-111732?
CVE-2026-111732 is a documented vulnerability. P-Net before 1.0.3, when built with PNET_OPTION_AR_VENDOR_BLOCKS enabled, parses a data length from a field of the ARVendorBlock request that is not part of the block definition and uses it as the num...
How severe is CVE-2026-111732?
CVSS scoring is not yet available for CVE-2026-111732. Check NVD for updates.
Is there a patch for CVE-2026-111732?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.