p PatchFirst

CVE-2026-49282

CVE-2026-49282 · Capstone M68K and RISCV `cs_insn_name()` invalid IDs can trigger out-of-bounds reads and process crashes

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue.

CVSS 5.1 · Medium · EPSS 0.2%

Published
Updated

Stack: system

Affected products and versions

  • capstone

    Versions
    • < 6.0.0-Alpha9: Affected

    No fix published

  • capstone Debian:12

    Versions
    • 4.0.2-5
    • 4.0.2-5.1
    • 5.0-1~exp1
    • 5.0.1-1~exp1
    • 5.0.3-1
    • 5.0.5-1
    • 5.0.6-1
    • 5.0.7-1
    • 5.0.7-1~deb13u1
    • 5.0.7-2
    • 5.0.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Debian:13

    Versions
    • 5.0.6-1
    • 5.0.7-1
    • 5.0.7-1~deb13u1
    • 5.0.7-2
    • 5.0.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Debian:14

    Versions
    • 5.0.6-1
    • 5.0.7-1
    • 5.0.7-1~deb13u1
    • 5.0.7-2
    • 5.0.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:16.04:LTS

    Versions
    • 3.0.4-0.1
    • 3.0.4-0.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:18.04:LTS

    Versions
    • 3.0.4-3
    • 3.0.4-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:20.04:LTS

    Versions
    • 4.0.1+really+3.0.5-1
    • 4.0.1+really+3.0.5-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:22.04:LTS

    Versions
    • 4.0.2-3
    • 4.0.2-3build1
    • 4.0.2-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:24.04:LTS

    Versions
    • 4.0.2-5
    • 4.0.2-5ubuntu1
    • 4.0.2-5.1
    • 4.0.2-5.1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:26.10

    Versions
    • 5.0.7-2
    • 5.0.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • capstone Ubuntu:26.04:LTS

    Versions
    • 5.0.6-1
    • 5.0.6-1build1
    • 5.0.7-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →