CVE-2025-68114

low

Description

Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream’s index negative or past the end, leading to a stack buffer underflow/overflow when the next write occurs. Commit 2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue.

References

https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r

https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e

Details

Source: Mitre, NVD

Published: 2025-12-17

Updated: 2026-01-02

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

CVSS v4

Base Score: 2.4

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.00013