Out-of-bounds Read Affecting capstone-engine/capstone package, versions [0,6.0.0-Alpha9)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Aug 2026
- disclosed14 Aug 2026
- creditzxcvbbq, sondt99
Introduced: 14 Aug 2026
NewCVE-2026-49282 (opens in a new tab)How to fix?
Upgrade capstone-engine/capstone to version 6.0.0-Alpha9 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read via the cs_insn_name() lookup in arch/M68K/M68KInstPrinter.c and arch/RISCV/RISCVMapping.c. An attacker can crash the process by supplying an invalid instruction ID to cs_insn_name() on an M68K or RISCV handle. On M68K, the backend indexes s_instruction_names directly with the caller-supplied ID, so a large invalid value reads past the table. On RISCV, the alias-name path accepts IDs in the gap before RISCV_INS_ALIAS_BEGIN, which makes the alias-table index underflow and triggers a read before the array.