CVE-2026-18220

The CVE-2026-18220 vulnerability affects the GNU binutils BFD library’s DLX ELF backend (source file bfd/elf32-dlx.c). The root cause is an insufficient bounds check in dlx_rtype_to_howto() on ELF32_R_TYPE(r_info) before indexing into dlx_elf_howto_table[], despite non-contiguous DLX relocation t...

CVE-2026-18220 Binutils: binutils: out-of-bounds write in bfd dlx elf backend relocation processing

An out-of-bounds write vulnerability was found in the BFD library's DLX ELF backend bfd/elf32-dlx.c in GNU binutils. The dlxrtypetohowto function maps ELF relocation types to internal howto structures but fails to perform adequate bounds checking on attacker-controlled relocation type values via...