Capstone Integer overflow

published 2017-03-16 9 y ago modified 2026-06-17 4 mo ago also GHSA-3v99-hpv7-9hh9 , PYSEC-2017-113 , EUVD-2017-0143

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known

Integer overflow in the cs_winkernel_malloc function in winkernel_mm.c in Capstone 3.0.4 and earlier allows attackers to cause a denial of service (heap-based buffer overflow in a kernel driver) or possibly have unspecified other impact via a large value.

Patch / fix

fixed in 1 links 1

pypi capstone 3.0.5rc2

github.com/aquynh/capstone@6fe86ee commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-6952 updated 2025-11-21 cvss 3.3

capstone: Integer overflow in the cs_winkernel_malloc function

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
GitHub	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	capstone	<3.0.5rc2	3.0.5rc2

Classification

Weakness

CWE-190 Integer Overflow or Wraparound

References

github.com /aquynh/capstone/commit/6fe86eef621b9849f51a5e1e5d73258a93440403
web, patch
securityfocus.com /bid/97323
vdb-entry, web
nvd.nist.gov /vuln/detail/CVE-2017-6952
advisory
github.com /capstone-engine/capstone
package
github.com /pypa/advisory-database/tree/main/vulns/capstone/PYSEC-2017-113.yaml
web
github.com /advisories/GHSA-3v99-hpv7-9hh9
advisory

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary