Background exploitation KEV catalog

CVE-2025-58034

Fortinet FortiWeb OS Command Injection Vulnerability

CheckOps priority index

6.1/10 Patch within 7 days

Severity6.7

Probability5.5

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 54.7% higher than 99.0% of CVEs

CVSS 3.1 6.7 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:

Exploited for 350 days 18 Nov 2025

CISA due date 25 Nov 2025 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)18 Nov 2025
Exploited in EUVD (ENISA)18 Nov 2025
Used by ransomwareno
EPSS above 10 %54.7%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

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

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests or CLI commands.

Affected products

FortiWeb

Affected versions

7.0.2 ≤7.0.11
7.6.0 ≤7.6.4
7.2.0 ≤7.2.11
7.4.0 ≤7.4.8

Weaknesses (CWE)

CWE-78

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

18 Nov 2025
Published
18 Nov 2025
Exploitation reported (ENISA)
18 Nov 2025
Added to the KEV catalog
25 Nov 2025
CISA remediation due date
25 Sept 2026
EPSS peak: 55.6%

References

Other exploited vulnerabilities from the same vendor

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CVE-2026-39808Fortinet FortiSandbox OS Command Injection Vulnerability
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