CVE-2021-26104

HIGH

7.8

CVSS Score

Published: April 6, 2022 at 04:00 PM UTC

Updated: June 17, 2026 at 03:42 AM UTC

3 products affected across 1 vendorFortiManagerFortiAnalyzerFortiPortal

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Severity

HIGH7.8

Exploit prediction

EPSS 3%

SSVC

No known exploit

Description

Multiple OS command injection (CWE-78) vulnerabilities in the command line interface of FortiManager 6.2.7 and below, 6.4.5 and below and all versions of 6.2.x, 6.0.x and 5.6.x, FortiAnalyzer 6.2.7 and below, 6.4.5 and below and all versions of 6.2.x, 6.0.x and 5.6.x, and FortiPortal 5.2.5 and below, 5.3.5 and below and 6.0.4 and below may allow a local authenticated and unprivileged user to execute arbitrary shell commands as root via specifically crafted CLI command parameters.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FortiAnalyzer · Fortinet

95%

v ≤ 6.2.75.6.0 ≤ v < 6.0.116.2.0 ≤ v < 6.2.86.4.0 ≤ v < 6.4.6

Affected range stops below 6.0.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.4.6, so it looks safe — our inference, not a vendor statement

FortiManager · Fortinet

95%

v ≤ 6.2.75.6.0 ≤ v < 6.0.116.2.0 ≤ v < 6.2.86.4.0 ≤ v < 6.4.6

Affected range stops below 6.0.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.4.6, so it looks safe — our inference, not a vendor statement

FortiPortal · Fortinet

95%

v ≤ 6.2.7v < 5.2.65.3.0 ≤ v < 5.3.66.0.0 ≤ v < 6.0.5

Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.0.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://fortiguard.com/advisory/FG-IR-21-037

References (2)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://fortiguard.com/advisory/FG-IR-21-037

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://github.com/orangecertcc/security-research/security/advisories/GHSA-f73m-fvj3-m2pm

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHfortinet

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-78

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