CVE-2025-64153: fortinet fortiextender_firmware OS Command Injection
Vulnerability summary
CVE-2025-64153 is a high (CVSS 7.2) OS Command Injection vulnerability in fortinet fortiextender_firmware. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities.
Timeline
- 09-12-2025PublishedVulnerability first disclosed.
- 14-01-2026Last modifiedVulnerability information updated.
Description
A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.6.0 through 7.6.3, FortiExtender 7.4.0 through 7.4.7, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated attacker to execute unauthorized code or commands via a specific HTTP request.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA6.7MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:CDiffers
EPSS trend
Probability
1.71%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.71% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet1 product
- fortiextender_firmware≥ 7.0.0, ≤ 7.0.5 | ≥ 7.0.0, ≤ 7.0.4 | ≥ 7.2.0, ≤ 7.2.5 | ≥ 7.4.0, ≤ 7.4.7 | ≥ 7.6.0, ≤ 7.6.3
1 vendor · 1 product
References
1 links- fortiguard.fortinet.com/psirt/FG-IR-25-739Vendor Advisory