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TI-2024-36909 Aliases CVE-2024-55599GHSA-j5ff-wp9g-xph9

An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS…

Priority LOW 23CWE-358Published · Updated

Key facts

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

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

Summary

An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS version 7.6.0, version 7.4.7 and below, 7.0 all versions, 6.4 all versions and FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions may allow a remote unauthenticated user to bypass the DNS filter via Apple devices.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00399 34th 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
FortinetFortiOS7.6.0; 7.4.0 – 7.4.7; 7.2.0 – 7.2.10; 7.0.0 – 7.0.17; 6.4.0 – 6.4.16—No fix listedCNA
FortinetFortiProxy7.6.0 – 7.6.1; 7.4.0 – 7.4.8; 7.2.0 – 7.2.14; 7.0.0 – 7.0.21—No fix listedCNA
  • FortiOS VendorFortinet Affected 7.6.0; 7.4.0 – 7.4.7; 7.2.0 – 7.2.10; 7.0.0 – 7.0.17; 6.4.0 – 6.4.16 Fixed in — No fix listed CNA
  • FortiProxy VendorFortinet Affected 7.6.0 – 7.6.1; 7.4.0 – 7.4.8; 7.2.0 – 7.2.14; 7.0.0 – 7.0.21 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*7.0.0 to before 7.4.9; 7.6.0 to before 7.6.2VulnerableFortinet
cpe:2.3:a:fortinet:fortisase:24.4.32:*:*:*:-:*:*:*24.4.32VulnerableFortinet
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*6.4.0 to before 7.2.11; 7.4.0 to before 7.4.8VulnerableFortinet
cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*7.6.0VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.4.9; 7.6.0 to before 7.6.2 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortisase:24.4.32:*:*:*:-:*:*:* Versions 24.4.32 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 6.4.0 to before 7.2.11; 7.4.0 to before 7.4.8 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:* Versions 7.6.0 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-55599
  2. 2026-10-03 Alias added: GHSA-j5ff-wp9g-xph9

References

  • 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