CVE-2025-24472

Fortinet FortiOS and FortiProxy: Authentication Bypass

As of , CVE-2025-24472 in Fortinet FortiOS and FortiProxy is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 18 March 2025
US federal deadline
8 April 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Known
EPSS score
0.07Higher than 94% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: fortiguard.fortinet.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA's required action

What the flaw is

Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests.

CISA's description

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through 7.0.16 and FortiProxy 7.2.0 through 7.2.12, 7.0.0 through 7.0.19 may allow a remote unauthenticated attacker with prior knowledge of upstream and downstream devices serial numbers to gain super-admin privileges on the downstream device, if the Security Fabric is enabled, via crafted CSF proxy requests.

The CVE record's description, from fortinet

CVE published
11 February 2025
Assigned by
fortinet
CVSS
8.1 High (CVSS 3.1, from the CNA)
CWE-288
Authentication Bypass Using an Alternate Path or Channel
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

FortiOS and FortiProxy: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2024-55591Authentication BypassFortinet FortiOS and FortiProxyPatch this weekRansomware use; EPSS 0.940.94
CVE-2018-13382Improper AuthorizationFortinet FortiOS and FortiProxyPatch this weekRansomware use; EPSS 0.820.82
CVE-2018-13383Out-of-bounds WriteFortinet FortiOS and FortiProxyPatch this weekRansomware use0.34

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