What’s Vulnerable › Vulnerabilities

CVE-2021-26089

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-12 · updated 2026-06-17
• Weakness: CWE-59

Description

An improper symlink following in FortiClient for Mac 6.4.3 and below may allow an non-privileged user to execute arbitrary privileged shell commands during installation phase.

Affected products

• Fortinet FortiClientWindows: through 6.4.3

References

• https://fortiguard.com/advisory/FG-IR-21-022
• https://www.zerodayinitiative.com/advisories/ZDI-22-078/
• https://fortiguard.com/advisory/FG-IR-21-022
• https://www.zerodayinitiative.com/advisories/ZDI-22-078/

Get alerted when CVE-2021-26089 or the next vulnerability affects your stack