What is the CVSS score of CVE-2021-26105?

CVE-2021-26105 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Fortisandbox are affected by CVE-2021-26105?

Organizations using the profile parser of FortiSandbox should be aware of notable risk from CVE-2021-26105 rated CVSS 6.8. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2021-26105?

Within 30 days: Identify affected systems running the profile parser of FortiSandbox and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Fortisandbox CVE-2021-26105

MEDIUM

Improperly Implemented Security Check for Standard (CWE-358)

2025-03-24 psirt@fortinet.com

Buffer Overflow Fortisandbox

6.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

CVE Published

Mar 24, 2025 - 16:15 nvd

MEDIUM 6.8

DescriptionCVE.org

A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of FortiSandbox version 3.2.2 and below, version 3.1.4 and below may allow an authenticated attacker to potentially execute unauthorized code or commands via specifically crafted HTTP requests.

AnalysisAI

A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of FortiSandbox version 3.2.2 and below, version 3.1.4 and below may allow an authenticated attacker to potentially execute. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-358. A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of FortiSandbox version 3.2.2 and below, version 3.1.4 and below may allow an authenticated attacker to potentially execute unauthorized code or commands via specifically crafted HTTP requests. Affected products include: Fortinet Fortisandbox. Version information: version 3.2.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.