What’s Vulnerable › Vulnerabilities

CVE-2026-106173

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-21
• Weakness: CWE-22

Description

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiSIEM 7.5.0 may allow attacker to execute unauthorized code or commands via specially crafted packets.

Affected products

• Fortinet FortiSIEM: from 7.4.0 through 7.4.2; from 7.3.0 through 7.3.5; from 7.2.0 through 7.2.7; from 7.1.0 through 7.1.9; from 7.0.0 through 7.0.4; 7.5.0

In the news

• CVE-2026-106173 Deep-Dive: FortiSIEM gRPC Path Traversal File Write RCE
• Arbitrary file write in grpc phQueryMaster

References

• https://fortiguard.fortinet.com/psirt/FG-IR-26-180
• https://github.com/horizon3ai/CVE-2026-106173

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