CVE-2025-24473: Fortinet FortiClientWindows · Information Disclosure
Affects Fortinet FortiClientWindowsSource CVE Database V5
Public exploit available · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 28 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Fortinet FortiClientWindows | Affected
| Fixed in– |
AI-suggested
European organizations should immediately audit their Windows endpoint configurations to verify whether port 8053 is open to incoming connections. If this port is not explicitly required for business operations, it should be closed or blocked at the firewall level to eliminate exposure. Network segmentation and strict access control lists should be enforced to limit external access to internal endpoints running FortiClientWindows. Administrators should monitor network traffic for unusual connections targeting port 8053. Fortinet customers must track vendor communications closely and apply security patches or updates promptly once released. Additionally, organizations should review FortiClientWindows deployment policies to ensure default configurations are maintained and avoid unnecessary exposure of non-standard ports. Implementing endpoint detection and response (EDR) solutions can help identify suspicious activities related to attempts to exploit this vulnerability. Finally, security awareness training should remind IT staff to avoid enabling non-default ports without thorough risk assessment.
Description
A exposure of sensitive system information to an unauthorized control sphere vulnerability in Fortinet FortiClientWindows 7.2.0 through 7.2.1, FortiClientWindows 7.0.13 through 7.0.14 may allow an unauthorized remote attacker to view application information via navigation to a hosted webpage, if Windows is configured to accept incoming connections to port 8053 (non-default setup)