CVE-2025-68114

Name: CVE-2025-68114
Creator: NVD / NIST
Published: 2025-12-17T22:16:01.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2025-68114 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.16%

5.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Capstone-Engine	Capstone	< 6.0.0	—
Capstone-Engine	Capstone	6.0.0	Alpha1

References

Timeline

Published: Dec 17, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-68114?

How severe is CVE-2025-68114?

CVE-2025-68114 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2025-68114?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-68114?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST