CVE-2025-67873

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Source
https://cve.org/CVERecord?id=CVE-2025-67873
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-67873.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-67873
Aliases
  • GHSA-hj6g-v545-v7jg
Downstream
Related
Published
2025-12-17T21:12:13.739Z
Modified
2026-07-15T01:49:15.812014716Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
Summary
Capstone doesn't check Skipdata length, leading to cs_insn.bytes heap buffer overflow
Details

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 csdisasm/csdisasmiter memcpy more than 24 bytes into csinsn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue.

Database specific 
{
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/67xxx/CVE-2025-67873.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/capstone-engine/capstone

Affected ranges

Type
GIT
Repo
https://github.com/capstone-engine/capstone
Events
Introduced
97db712c91e964718f9cc300e81b9cf76b31a22e
Fixed
cbef767ab33b82166d263895f24084b75b316df3
Database specific 
{
    "cpe": [
        "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:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "6.0.0-alpha1"
        },
        {
            "last_affected": "6.0.0-alpha1"
        },
        {
            "introduced": "6.0.0-alpha2"
        },
        {
            "last_affected": "6.0.0-alpha2"
        },
        {
            "introduced": "6.0.0-alpha3"
        },
        {
            "last_affected": "6.0.0-alpha3"
        },
        {
            "introduced": "6.0.0-alpha4"
        },
        {
            "last_affected": "6.0.0-alpha4"
        },
        {
            "introduced": "6.0.0-alpha5"
        },
        {
            "last_affected": "6.0.0-alpha5"
        }
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

6.*
6.0.0-alpha1
6.0.0-alpha2
6.0.0-alpha3
6.0.0-alpha4
6.0.0-alpha5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-67873.json"