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TI-2021-19138 Aliases CVE-2021-43076GHSA-vcjf-q2w8-qgmr

Improper privilege management in Fortinet FortiADC

Priority LOW 30CWE-269Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.

Summary

An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00533 45th 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
FortinetFortiADCFortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0—No fix listedCNA
  • FortiADC VendorFortinet Affected FortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*5.3.0 – 5.3.7; 5.4.0 – 5.4.5; 6.0.0 – 6.0.4; 6.1.0 – 6.1.5VulnerableFortinet
cpe:2.3:a:fortinet:fortiadc:6.2.0:*:*:*:*:*:*:*6.2.0VulnerableFortinet
cpe:2.3:a:fortinet:fortiadc:6.2.1:*:*:*:*:*:*:*6.2.1VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:* Versions 5.3.0 – 5.3.7; 5.4.0 – 5.4.5; 6.0.0 – 6.0.4; 6.1.0 – 6.1.5 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiadc:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiadc:6.2.1:*:*:*:*:*:*:* Versions 6.2.1 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43076
  2. 2026-10-03 Alias added: GHSA-vcjf-q2w8-qgmr

References

Advisory 1

  • TI-2018-09612 Incorrect permission assignment in Fortinet FortiOS, fortiADC KEVCVSS 3.1MEDIUM 4.3
  • TI-2022-18008 An improper handling of malformed request vulnerability [CWE-228] exists in FortiADC 5.0… CVSS 3.1CRITICAL 9.8
  • TI-2023-10904 A permissive cross-domain policy with untrusted domains vulnerability in Fortinet… CVSS 3.1CRITICAL 9.1
  • TI-2022-18913 OS command injection in Fortinet FortiADC CVSS 3.1HIGH 8.8
  • TI-2022-18001 Cross-site scripting in Fortinet FortiADC CVSS 3.1HIGH 8.8
  • TI-2023-11386 Improper access control in Fortinet FortiADC CVSS 3.1HIGH 8.8
See all 42 →

Sources

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