CVE-2026-121529: origin validation error vulnerability in Fortinet FortiClientMac 7.4.0 through 7.4.7, FortiClientWindows 7.4.0 through 7.4.7, FortiClientWindows 7.2.0 through 7.2.14, FortiClientWindowsPAM 7.4.7, FortiClientWindowsPAM 7.2.14 may allow an unauthorized remote attacker to execute unauthorized code or commands
This Fortinet advisory covers CVE-2026-121529 in FortiClientMac and FortiClientWindowsPAM.
- CVE-2026-121529
Key facts
- Vendor rating
- Critical, CVSS 9.1
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C· base score 9.1, scored by fortinetAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: required. Scope: changed. Confidentiality impact: high. Integrity impact: high. Availability impact: high.- Weakness
- CWE-346 Escalation of privilege
- CISA KEV
- Not listed (catalogue checked )
- Affected
- FortiClientMac: 7.4.0 through 7.4.7 (vendor-listed versions); FortiClientWindows: 7.2.0 through 7.4.7 (vendor-listed versions); FortiClientWindowsPAM: 7.2.0 through 7.4.7 (vendor-listed versions)
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
A origin validation error vulnerability in Fortinet FortiClientMac 7.4.0 through 7.4.7, FortiClientWindows 7.4.0 through 7.4.7, FortiClientWindows 7.2.0 through 7.2.14, FortiClientWindowsPAM 7.4.7, FortiClientWindowsPAM 7.2.14 may allow an unauthorized remote attacker to execute unauthorized code or commands.
Successful exploitation requires interaction with the victim.
Text from the source record.
- FortiClientMac: 7.4.0 through 7.4.7 (vendor-listed versions)
- FortiClientWindows: 7.2.0 through 7.4.7 (vendor-listed versions)
- FortiClientWindowsPAM: 7.2.0 through 7.4.7 (vendor-listed versions)
Official advisory · high-confidence parse· fetched ·verify at source
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