CVE-2025-24477: Fortinet FortiOS · Escalation of Privilege
Affects Fortinet FortiOSSource CVE Database V5
Public exploit available · CVSS 4.0 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 15 Jul 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 FortiOS | Affected
| Fixed in– |
AI-suggested
- Immediately restrict CLI access on FortiOS devices to trusted administrators only, using network segmentation and access control lists to limit exposure.
- Monitor administrative access logs for unusual or unauthorized CLI command usage that could indicate exploitation attempts.
- Implement multi-factor authentication (MFA) for all administrative access to FortiOS devices to reduce the risk of credential compromise.
- Apply principle of least privilege to administrative accounts, ensuring users have only the permissions necessary for their roles.
- Stay alert for official Fortinet security advisories and patches addressing CVE-2025-24477 and apply updates promptly once available.
- Conduct internal vulnerability scans and penetration tests focusing on FortiOS devices to detect potential exploitation or misconfigurations.
- Consider deploying host-based intrusion detection systems (HIDS) on management workstations to detect suspicious activity related to FortiOS administration.
Description
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command