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TI-2026-42657 Aliases CVE-2026-59841GHSA-4fpq-5jrj-phcg

A improper restriction of communication channel to intended endpoints vulnerability in…

Priority LOW 32CWE-923Published · Updated

Key facts

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

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

Summary

A improper restriction of communication channel to intended endpoints vulnerability in Fortinet FortiSIEMWindowsAgent 7.4.0 through 7.4.1 may allow attacker to escalation of privilege via <insert attack vector here>

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00235 14th 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
FortinetFortiSIEMWindowsAgent7.4.0 – 7.4.1—No fix listedCNA
  • FortiSIEMWindowsAgent VendorFortinet Affected 7.4.0 – 7.4.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*7.4.0 to before 7.4.2VulnerableFortinet
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:* Versions 7.4.0 to before 7.4.2 Vulnerable ·Fortinet
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59841
  2. 2026-10-03 Alias added: GHSA-4fpq-5jrj-phcg

References

Advisory 1

  • TI-2024-15229 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2023-17481 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2025-18918 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2025-39605 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.4
  • TI-2024-15230 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
  • TI-2023-18387 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
See all 31 →

Sources

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