CVE WatchOct 14, 2026

CVE-2026-13732

A flaw was found in GDB's STABS debug format parser. The read_member_functions() function in gdb/stabsread.c contains a linked list removal

CVSS

7.0

High

EPSS

0.1%

KEV

—

Exploit Today

0-100

Published: Aug 31, 2026 · Last modified: Oct 14, 2026 · CWE-787

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-09-282026-10-25

Technical description

A flaw was found in GDB's STABS debug format parser. The read_member_functions() function in gdb/stabsread.c contains a linked list removal bug in the code that separates destructor and non-destructor member functions of C++ classes. The bug causes the destructor entries to remain in the main function list while the list length counter is decremented, resulting in an out-of-bounds write when the function list is copied to its final allocated array. An attacker can craft an ELF binary with malicious .stab and .stabstr sections that triggers this out-of-bounds write when a user opens the file in GDB and performs any symbol-inspection operation such as setting a breakpoint. The inferior process does not need to be executed. Under controlled conditions, this was demonstrated to achieve execution of arbitrary commands within the GDB process.

Official references

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