Most recent entries from all

BELL-CVE-2026-55893

Affected: Alpaquita:23: capstone, Alpaquita:25: capstone, Alpaquita:stream: capstone

EUVD-2026-357602

fkie_cve-2026-55893

Capstone is a disassembly framework. In 6.0.0-Alpha9 and earlier, Capstone's arch/SH/SHDisassembler.c SH floating-point decoders such as opFADD, opFMUL, and opFSUB call set_reg() and set_reg_n() using sh_info.op.op_count without checking the fixed-size operands[] array. Repeated crafted instructions processed through cs_disasm_iter() or cs_disasm() with CS_ARCH_SH, CS_MODE_SH2A or CS_MODE_SH4A, CS_MODE_SHFPU, and CS_OPT_DETAIL can increment the operand count beyond the 176-byte sh_info allocation and perform a four-byte heap buffer overflow write. The corruption can crash the process and may enable code execution depending on heap layout. This issue is fixed in version 6.0.0-Alpha10.

msrc_CVE-2026-55893 — Capstone SH disassembler `set_reg_n` heap buffer overflow via crafted SH2A FPU bytecode

msrc_CVE-2026-55893

RHSA-2026:59419 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

capstone: Capstone: Heap buffer overflow with potential code execution capstone: Capstone: Denial of Service via crafted SH2A bytecode

UBUNTU-CVE-2026-55893

Affected: Ubuntu:16.04:LTS: capstone, Ubuntu:18.04:LTS: capstone, Ubuntu:20.04:LTS: capstone, Ubuntu:22.04:LTS: capstone, Ubuntu:24.04:LTS: capstone, Ubuntu:26.04:LTS: capstone