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Exploited vulnerability · CISA KEV

Is CVE-2025-24472 exploited? Yes: in CISA KEV since 18 Mar 2025

Gociux · Fortinet FortiOS and FortiProxy · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-24472, Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 18 Mar 2025, 35 days after it was published. It is known to be used in ransomware campaigns. It affects Fortinet FortiOS and FortiProxy, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 18 Mar 2025
ransomwareKnownused in campaigns
EPSStop 10%more likely than most to be exploited
severity8.1CVSS 3.1 · high
US federal due8 Apr 2025BOD 22-01 deadline

What it 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.

VendorFortinet (32 exploited CVEs in KEV)
ProductFortiOS and FortiProxy
VulnerabilityFortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
WeaknessCWE-288
Published11 Feb 2025
Added to KEV18 Mar 2025
Reported by (CNA)fortinet

What to do

  1. Check whether you run it. Look for FortiOS and FortiProxy in your asset inventory, including appliances and cloud images. Stack check lists every exploited Fortinet CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 11 Feb 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for Fortinet.

Other exploited CVEs in FortiOS and FortiProxy

References

Questions

Is CVE-2025-24472 being exploited?

Yes. CISA added CVE-2025-24472 to the Known Exploited Vulnerabilities catalog on 18 Mar 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-24472 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2025-24472?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Fortinet's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected FortiOS and FortiProxy and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2025 · Fortinet scorecard · act-now radar.

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