CVE•Published 2026-07-21•Modified 2026-07-30•0 articles on news•4 live references•NVD data

CVE-2026-47143Capstone-engine · Capstone

Vulnerability data via NVD (ingested)

CVSS v3.1

5.1

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

Exploit Prediction Scoring System · top 93% of all CVEs

Weaknesses (CWE)

CWE-476NULL Pointer Dereference

Description

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.

Timeline

Published 2026-07-21

Modified 2026-07-30

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-47143

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Capstone-engine Capstone"

All exposed Capstone-engine Capstone instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Capstone"

HTTP body or banner mentions "Capstone" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-47143