Arbitrary process termination from exposed minifilter communication port
FG-IR-26-165
Summary
CVSSv3 Score:
7.3
A buffer copy without checking size of input vulnerability [CWE-120] in FortiClient Windows 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.
Revised on 2026-08-12 00:00:00
Products covered
FortiClient
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- The vendor changed the advisory summary.
- CVSS changed from 7.3 to 8.1.
- Added CVEs: CVE-2026-70465.
Updates
- Published by Fortinet
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.