Warning: FreeRTOS-Plus-TCP Bug Could Cause Chaos – Upgrade Now!
Attention, FreeRTOS users! A vulnerability, CVE-2025-5688, in FreeRTOS-Plus-TCP could cause an out-of-bounds write with LLMNR or mDNS and Buffer Allocation Scheme 1. Upgrade to version 4.3.2 to dodge this tech trip hazard. No workarounds—just a fresh version and a strong cup of coffee!
Hot Take:
FreeRTOS-Plus-TCP just discovered a new way to make your devices feel like they’re living on the edge—of a buffer overflow, that is! If your devices are chatting away with LLMNR or mDNS, you might want to listen up. Apparently, inviting them to the party with the wrong buffer allocation scheme is like inviting a bull into a china shop. So unless you want your network to have a meltdown over DNS names longer than your grocery list, it’s time to upgrade faster than you can say ‘CVE-2025-5688’!
Key Points:
- FreeRTOS-Plus-TCP has a security vulnerability (CVE-2025-5688) related to buffer overflows.
- The issue is triggered by using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled.
- Versions affected include v2.3.4 through v4.3.1 for LLMNR and v4.0.0 through v4.3.1 for mDNS.
- The vulnerability is resolved in FreeRTOS-Plus-TCP version 4.3.2.
- No workarounds are available; an upgrade is essential.