CVE-2025-68114

EUVD-2025-203995
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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
GitHub_MCNA
4.8 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Affected Products (NVD)
VendorProductVersion
capstone-enginecapstone
𝑥
< 6.0.0
capstone-enginecapstone
6.0.0:alpha1
capstone-enginecapstone
6.0.0:alpha2
capstone-enginecapstone
6.0.0:alpha3
capstone-enginecapstone
6.0.0:alpha4
capstone-enginecapstone
6.0.0:alpha5
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
capstone
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
plucky
ignored
questing
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e
https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r
https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r