Detections
Analytics
CVE-2026-121994
high
Description
A stack buffer overflow in the GDB client's remote protocol handler allows an attacker-controlled debug target to execute arbitrary code in the GDB process. The vulnerability exists in fetch_register_using_p, which decodes a stub's register reply into an alloca-sized buffer without bounding writes by the register width.
References
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-117571