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CVE-2025-67873

4.8 · MEDIUM

Capstone is a disassembly framework.

Published Dec 17, 2025CWE-122EPSS 0.24%

Overview

CVE-2025-67873 is a medium-severity vulnerability. It was published on December 17, 2025 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3GitHubgithub.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jgGitHubgithub.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg

How CyberStrike helps

Frequently asked questions

What is CVE-2025-67873?

CVE-2025-67873 is a medium-severity vulnerability. It was published on December 17, 2025 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2025-67873?

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-67873?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-67873?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-67873 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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