CVE-2026-47143 (GCVE-0-2026-47143)

Vulnerability from cvelistv5 – Published: 2026-07-21 20:10 – Updated: 2026-07-22 13:42
VLAI
Title
Capstone has a NULL Pointer Dereference with 3DNow! opcodes
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.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 13:42 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
capstone-engine capstone Affected: < 5.0.8
Affected: < 6.0.0-Alpha8
guessed Create a notification for this product.
Show details on NVD website
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