Cyber Resilience

CVE-2021-26104

HighPublic PoC

Published: 06 April 2022

Published
06 April 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0084 75.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-26104 is a high-severity OS Command Injection (CWE-78) vulnerability in Fortinet Fortianalyzer. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 24.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

fortinet
fortianalyzer
5.6.0 — 6.0.11 · 6.2.0 — 6.2.8 · 6.4.0 — 6.4.6
fortinet
fortimanager
5.6.0 — 6.0.11 · 6.2.0 — 6.2.8 · 6.4.0 — 6.4.6
fortinet
fortiportal
≤ 5.2.6 · 5.3.0 — 5.3.6 · 6.0.0 — 6.0.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References