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TI-2021-18962 Aliases CVE-2021-42758GHSA-85xx-79fp-6rmf

Incorrect authorization in Fortinet FortiWLC

Priority MEDIUM 44CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

An improper access control vulnerability [CWE-284] in FortiWLC 8.6.1 and below may allow an authenticated and remote attacker with low privileges to execute any command as an admin user with full access rights via bypassing the GUI restrictions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02019 81st 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
Total

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 FortiWLCFortiWLC 8.6.1 and below—No fix listedCNA
  • Fortinet FortiWLC VendorFortinet Affected FortiWLC 8.6.1 and below Fixed in — No fix listed CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*8.2.4 – 8.2.7; 8.3.0 – 8.3.3; 8.5.0 – 8.5.5VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.0.5:*:*:*:*:*:*:*8.0.5VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:*8.0.6VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:*8.1.2VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:*8.1.3VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:*8.4.0VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:*8.4.1VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:*8.4.2VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:*8.4.4VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:*8.4.5VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:* Versions 8.2.4 – 8.2.7; 8.3.0 – 8.3.3; 8.5.0 – 8.5.5 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.0.5:*:*:*:*:*:*:* Versions 8.0.5 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:* Versions 8.0.6 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:* Versions 8.1.2 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:* Versions 8.1.3 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:* Versions 8.4.0 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:* Versions 8.4.1 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:* Versions 8.4.2 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:* Versions 8.4.4 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:* Versions 8.4.5 Vulnerable ·Fortinet
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:*8.4.6VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:*8.4.7VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:*8.4.8VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:*8.6.0VulnerableFortinet
cpe:2.3:a:fortinet:fortiwlc:8.6.1:*:*:*:*:*:*:*8.6.1VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:* Versions 8.4.6 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:* Versions 8.4.7 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:* Versions 8.4.8 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:* Versions 8.6.0 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiwlc:8.6.1:*:*:*:*:*:*:* Versions 8.6.1 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42758
  2. 2026-10-03 Alias added: GHSA-85xx-79fp-6rmf

References

Patch 1

  • TI-2017-12817 Hard-coded credentials in Fortinet FortiWLC CVSS 3.0CRITICAL 9.8
  • TI-2017-12816 Hard-coded credentials in Fortinet FortiWLC CVSS 3.0CRITICAL 9.8
  • TI-2016-06996 Hard-coded credentials in Fortinet FortiWLC CVSS 3.0CRITICAL 9.1
  • TI-2016-06425 The rsyncd server in Fortinet FortiWLC 6.1-2-29 and earlier, 7.0-9-1, 7.0-10-0, 8.0-5-0… CVSS 3.0CRITICAL 9.8
  • TI-2017-05004 An OS Command Injection vulnerability in Fortinet FortiWLC 6.1-2 through 6.1-5, 7.0-7… CVSS 3.0HIGH 7.2
  • TI-2016-06426 Fortinet FortiWLC 6.1-2-29 and earlier, 7.0-9-1, 7.0-10-0, 8.0-5-0, 8.1-2-0, and 8.2-4-0… CVSS 3.0HIGH 7.2
See all 13 →

Sources

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