Home/CVE/Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a use
CVE

CVE-2025-67873

Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a use

Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue.

MEDIUM · CVSS 4.8 EPSS 0.00014
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
▤

Affected Products & Versions

2
capstone-engine capstone< 6.0.0
capstone-engine capstoneall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-hj6g-v545-v7jggithub.com
▣

Scoring & Timeline

4.8
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Dec 2025 · 10:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
suse-csafSUSE-SU-2026:20868-1
msrcCVE-2025-67873
suse-csafSUSE-SU-2026:0060-1
suse-csafSUSE-SU-2026:20054-1
rhsaRHSA-2026:12781Moderate
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3Patch
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