CVE-2026-121994

Name of the Vulnerable Software and Affected Versions GDB (affected versions not specified)

Description A stack buffer overflow occurs in the GDB client's remote protocol handler. This issue allows a debug target controlled by an attacker to execute arbitrary code within the GDB process. The flaw is located in the fetch register using p() function, which decodes a stub's register reply into an alloca-sized buffer without bounding writes by the register width.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.