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TI-2019-04745 Aliases CVE-2019-6696GHSA-c66r-j7v3-prf5

Improper input validation in Fortinet FortiOS

Priority LOW 28CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.

Summary

An improper input validation vulnerability in FortiOS 6.2.1, 6.2.0, 6.0.8 and below until 5.4.0 under admin webUI may allow an attacker to perform an URL redirect attack via a specifically crafted request to the admin initial password change webpage.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00698 53rd 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 FortiOS6.2.1; 6.2.0; 6.0.8 and below until 5.4.0—No fix listedCNA
  • Fortinet FortiOS VendorFortinet Affected 6.2.1; 6.2.0; 6.0.8 and below until 5.4.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*5.4.0 – 6.0.8VulnerableFortinet
cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:*6.2.0VulnerableFortinet
cpe:2.3:o:fortinet:fortios:6.2.1:*:*:*:*:*:*:*6.2.1VulnerableFortinet
  • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 5.4.0 – 6.0.8 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios: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-2019-6696
  2. 2026-10-03 Alias added: GHSA-c66r-j7v3-prf5

References

Advisory 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-36904 Authentication bypass in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-15234 A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through… KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-14448 Out-of-bounds write in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-12585 Heap-based buffer overflow in Fortinet FortiOS-6K7K KEVCVSS 3.1CRITICAL 9.8
See all 276 →

Sources

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