LiveActive security incident?Get immediate response
CVE Record

CVE-2021-22125: An instance of improper neutralization of special elements in the sniffer module of FortiSandbox before 3.2...

An instance of improper neutralization of special elements in the sniffer module of FortiSandbox before 3.2.2 may allow an authenticated administrator to execute commands on the underlying system's shell via altering the content of its configuration file.

MediumCVSS 6.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

FortiSandbox versions before 3.2.2 contain a command execution flaw in the sniffer module. A logged-in administrator could alter configuration content in a way that executes shell commands on the appliance. This is not described as remotely exploitable without access, but it can undermine appliance integrity.

Executive priority

Treat this as a moderate-priority appliance hardening issue. Prioritize remediation if FortiSandbox is internet-adjacent, shared across teams, or has weak administrator controls. No active exploitation is evidenced in the provided sources.

Technical view

CVE-2021-22125 is improper neutralization of special elements in FortiSandbox's sniffer module before 3.2.2. The CVSS 3.1 score is 6.3 with adjacent access, low complexity, low privileges, no user interaction, high integrity impact, and low availability impact.

Likely exposure

Exposure is limited to organizations running Fortinet FortiSandbox before 3.2.2, especially where administrative access to the appliance is broadly delegated or reachable from less trusted network segments. The source bundle does not identify other Fortinet products as affected.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated administrative access according to the CVE description, so the main risk is misuse of valid admin access or compromise of an admin account.

Researcher notes

The record provides no CWE mapping and limited technical detail. Validation should focus on version exposure, administrative access paths, audit evidence, and vendor advisory alignment. Do not assume exploit availability or broader product impact from the provided data.

Mitigation direction

  • Upgrade FortiSandbox to version 3.2.2 or later where supported.
  • Review Fortinet advisory FG-IR-21-005 for vendor-approved remediation guidance.
  • Restrict FortiSandbox administration to trusted networks and named administrators.
  • Enforce strong authentication and remove unnecessary administrative accounts.
  • Monitor configuration changes and appliance shell activity for suspicious patterns.

Validation and detection

  • Inventory all FortiSandbox appliances and record exact firmware versions.
  • Confirm no appliance remains on a version before 3.2.2.
  • Review administrator account lists, roles, and recent login history.
  • Check appliance audit logs for unexpected sniffer configuration changes.
  • Verify management access is restricted from untrusted network segments.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2021-22125 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.3CVSS 3.1MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L2.14.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.3Medium
CVSS 3.1 vector shape for CVE-2021-22125Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FortinetFortinet FortiSandboxFortiSandbox before 3.2.2Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.