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Exploited vulnerability · CISA KEV

Is CVE-2025-58034 exploited? Yes: in CISA KEV since 18 Nov 2025

Gociux · Fortinet FortiWeb · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-58034, Fortinet FortiWeb OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 18 Nov 2025, the day it was published. It affects Fortinet FortiWeb, 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 Nov 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity6.7CVSS 3.1 · medium
US federal due25 Nov 2025BOD 22-01 deadline

What it is

Fortinet FortiWeb contains an OS command Injection vulnerability that may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests or CLI commands.

VendorFortinet (32 exploited CVEs in KEV)
ProductFortiWeb
VulnerabilityFortinet FortiWeb OS Command Injection Vulnerability
WeaknessCWE-78
Published18 Nov 2025
Added to KEV18 Nov 2025
Reported by (CNA)fortinet

What to do

  1. Check whether you run it. Look for FortiWeb 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 18 Nov 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for Fortinet.

Other exploited CVEs in FortiWeb

References

Questions

Is CVE-2025-58034 being exploited?

Yes. CISA added CVE-2025-58034 to the Known Exploited Vulnerabilities catalog on 18 Nov 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-58034 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-58034?

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 FortiWeb 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 November 2025 · Fortinet scorecard · act-now radar.

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