Read the docs
TI-2019-03958 Aliases CVE-2019-5593GHSA-3hjp-23xj-gxx4

Improper handling of exceptional conditions in Fortinet FortiOS

Priority LOW 24CWE-755Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Improper permission or value checking in the CLI console may allow a non-privileged user to obtain Fortinet FortiOS plaint text private keys of system's builtin local certificates via unsetting the keys encryption password in FortiOS 6.2.0, 6.0.0 to 6.0.6, 5.6.10 and below or for user uploaded local certificates via setting an empty password in FortiOS 6.2.1, 6.2.0, 6.0.6 and below.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00189 8th 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
—Fortinet FortiOSFortiOS 6.2.0 to 6.2.1, 6.0.6 and below—No fix listedCNA
  • Fortinet FortiOS Vendor— Affected FortiOS 6.2.0 to 6.2.1, 6.0.6 and below Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*up to 5.6.10; 6.0.0 – 6.0.6VulnerableFortinet
cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:*6.2.0VulnerableFortinet
  • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions up to 5.6.10; 6.0.0 – 6.0.6 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-5593
  2. 2026-10-03 Alias added: GHSA-3hjp-23xj-gxx4

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