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TI-2021-05113 Aliases CVE-2021-22123GHSA-r6qx-2c6r-vjjf

OS command injection in Fortinet FortiWeb

Priority HIGH 79CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

An OS command injection vulnerability in FortiWeb's management interface 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x may allow a remote authenticated attacker to execute arbitrary commands on the system via the SAML server configuration page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.84396 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortinet FortiWebFortiWeb 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x—No fix listedCNA
  • Fortinet FortiWeb VendorFortinet Affected FortiWeb 6.3.7 and below, 6.2.3 and below, 6.1.x, 6.0.x, 5.9.x Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*5.9.0 to before 6.2.4; 6.3.0 to before 6.3.8VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:* Versions 5.9.0 to before 6.2.4; 6.3.0 to before 6.3.8 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-22123
  2. 2026-10-03 Alias added: GHSA-r6qx-2c6r-vjjf

References

Advisory 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-39856 Path traversal in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-18919 SQL injection in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-35886 OS command injection in Fortinet FortiWeb KEVCVSS 3.1MEDIUM 6.7
  • TI-2021-18960 Stack-based buffer overflow in Fortinet FortiWeb CVSS 3.1CRITICAL 9.8
  • TI-2025-37179 Improper signature verification in Fortinet FortiWeb CVSS 3.1CRITICAL 9.1
See all 125 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences