
🔴 RT-Labs P-Net: out-of-bounds write in AR Vendor Block request parsing (CVE-2026-111732) An attacker can send a crafted Connect request to crash a device or possibly run arbitrary code on it. Patch → 1.0.3 https://cve.now/CVE-2026-111732
Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE

🔴 RT-Labs P-Net: out-of-bounds write in AR Vendor Block request parsing (CVE-2026-111732) An attacker can send a crafted Connect request to crash a device or possibly run arbitrary code on it. Patch → 1.0.3 https://cve.now/CVE-2026-111732