capstone-engine capstone up to 6.0.0-Alpha5 SStream_concat buffer underflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in capstone-engine capstone up to 6.0.0-Alpha5. The affected element is the function SStream_concat. Executing a manipulation can lead to buffer underflow. This vulnerability is registered as CVE-2025-68114. The attack needs to be launched locally. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in capstone-engine capstone up to 6.0.0-Alpha5 and classified as problematic. This vulnerability affects the function SStream_concat. The manipulation with an unknown input leads to a buffer underflow vulnerability. The CWE definition for the vulnerability is CWE-124. The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2025-68114 since 12/15/2025. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 279253 (Linux Distros Unpatched Vulnerability : CVE-2025-68114), which helps to determine the existence of the flaw in a target environment.

Applying the patch 2c7797182a1618be12017d7d41e0b6581d5d529e is able to eliminate this problem.

The vulnerability is also documented in the databases at Tenable (279253) and CERT Bund (WID-SEC-2026-0769). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Red Hat Enterprise Linux
  • Red Hat OpenShift

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 4.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer underflow
CWE: CWE-124 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 279253
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68114

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 2c7797182a1618be12017d7d41e0b6581d5d529e

Timelineinfo

12/15/2025 CVE reserved
12/17/2025 +2 days Advisory disclosed
12/17/2025 +0 days VulDB entry created
03/18/2026 +91 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-68114 (🔒)
GCVE (CVE): GCVE-0-2025-68114
GCVE (VulDB): GCVE-100-337090
CERT Bund: WID-SEC-2026-0769 - Red Hat Enterprise Linux (capstone) und OpenShift (rhcos): Mehrere Schwachstellen

Entryinfo

Created: 12/17/2025 23:05
Updated: 03/18/2026 19:29
Changes: 12/17/2025 23:05 (63), 12/19/2025 18:25 (2), 01/02/2026 21:04 (11), 03/18/2026 19:29 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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