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TI-2026-49238 Aliases CVE-2026-70465GHSA-95wv-6wmf-f8vm

Buffer overflow in Fortinet FortiClientWindows

Priority LOW 35CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
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-120 and the CVSS impact.

Summary

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00516 44th 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
FortinetFortiClientWindows7.4.0 – 7.4.3; 7.2.0 – 7.2.11—No fix listedCNA
  • FortiClientWindows VendorFortinet Affected 7.4.0 – 7.4.3; 7.2.0 – 7.2.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*7.2.0 to before 7.2.12; 7.4.0 to before 7.4.4VulnerableFortinet
  • cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:* Versions 7.2.0 to before 7.2.12; 7.4.0 to before 7.4.4 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-70465
  2. 2026-10-03 Alias added: GHSA-95wv-6wmf-f8vm

References

Advisory 1

  • TI-2019-13180 An unquoted service path vulnerability in the FortiClient FortiTray component of… CVSS 3.1CRITICAL 9.8
  • TI-2023-24393 Code injection in Fortinet FortiClientLinux CVSS 3.1CRITICAL 9.4
  • TI-2017-10335 Information disclosure in Fortinet FortiClient for Windows CVSS 3.0HIGH 8.8
  • TI-2016-06998 In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability. CVSS 3.0HIGH 8.8
  • TI-2019-03954 Untrusted search path in Fortinet FortiClientWindows CVSS 3.1HIGH 8.6
  • TI-2017-05007 A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0… CVSS 3.0HIGH 8.1
See all 85 →

Sources

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