CVE-2026-47143

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-47143
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.

5.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.4 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f Patch
https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7 Patch
https://github.com/capstone-engine/capstone/pull/2924 Issue Tracking Patch
https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm Exploit Vendor Advisory
https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm Exploit Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:capstone-engine:capstone:*:*:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha7:*:*:*:*:*:*
History

30 Jul 2026, 15:16

Type Values Removed Values Added
First Time Capstone-engine
Capstone-engine capstone
References () https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f - () https://github.com/capstone-engine/capstone/commit/a0201371719b5aaa91d318ab2898843718f92d1f - Patch
References () https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7 - () https://github.com/capstone-engine/capstone/commit/fab595205fee206f5c21be6ed8ad2eaf9225f1c7 - Patch
References () https://github.com/capstone-engine/capstone/pull/2924 - () https://github.com/capstone-engine/capstone/pull/2924 - Issue Tracking, Patch
References () https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm - () https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm - Exploit, Vendor Advisory
CPE cpe:2.3:a:capstone-engine:capstone:*:*:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha2:*:*:*:*:*:*

22 Jul 2026, 14:17

Type Values Removed Values Added
References () https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm - () https://github.com/capstone-engine/capstone/security/advisories/GHSA-289w-cm54-fgrm -

21 Jul 2026, 21:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-07-21 21:16

Updated : 2026-07-30 15:16

NVD link : CVE-2026-47143

Mitre link : CVE-2026-47143

CVE.ORG link : CVE-2026-47143

JSON object : View

Products Affected

capstone-engine

  • capstone
CWE
CWE-476

NULL Pointer Dereference