CVE-2026-47143
5.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Capstone is a disassembly framework. Versions prior to 6.0.0-Alpha8 and 5.0.8 have a NULL pointer dereference in modRMRequired() and decode() when disassembling 3DNow! opcodes (0F 0F) in builds compiled with -DCAPSTONE_X86_REDUCE, allowing a remote attacker to crash any application using the reduced X86 Capstone library by supplying a crafted input containing the 4-byte sequence 0F 0F <modrm> <imm8>. Versions 6.0.0-Alpha8 and 5.0.8 patch the issue.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| capstone-engine | capstone | < 5.0.8 | affected |
| capstone-engine | capstone | < 6.0.0-Alpha8 | affected |
Weaknesses
- CWE-476: CWE-476: NULL Pointer Dereference
References
- https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm
- https://github.com/capstone-engine/capstone/pull/2924
- https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f
- https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7
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