How severe is CVE-2025-3540?

CVE-2025-3540 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-3540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-3540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-3540 have an EU (EUVD) identifier?

Yes. CVE-2025-3540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10854.

When was CVE-2025-3540 published?

CVE-2025-3540 was published on 2025-04-13 and last updated on 2026-06-17.

CVE-2025-3540

CVE-2025-3540 is a high-severity vulnerability with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 7.7
CVSS v4: 8.6
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10854
Weakness: CWE-74
Published: 2025-04-13
Last modified: 2026-06-17

Description

A vulnerability classified as critical was found in H3C Magic NX15, Magic NX30 Pro, Magic NX400 and Magic R3010 up to V100R014. Affected by this vulnerability is the function FCGI_WizardProtoProcess of the file /api/wizard/getCapability of the component HTTP POST Request Handler. The manipulation leads to command injection. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.

Frequently asked questions

What is CVE-2025-3540?: A vulnerability classified as critical was found in H3C Magic NX15, Magic NX30 Pro, Magic NX400 and Magic R3010 up to V100R014. Affected by this vulnerability is the function FCGI_WizardProtoProcess of the file /api/wizard/getCapability of the component HTTP POST Request Handler. The manipulation leads to command injection. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.
How severe is CVE-2025-3540?: CVE-2025-3540 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-3540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-3540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-3540 have an EU (EUVD) identifier?: Yes. CVE-2025-3540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10854.
When was CVE-2025-3540 published?: CVE-2025-3540 was published on 2025-04-13 and last updated on 2026-06-17.

References

Other CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities

CVE-2026-25586 — Critical (CVSS 10.0): SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty…
CVE-2026-25520 — Critical (CVSS 10.0): SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, The return values of functions aren't wrapped.…
CVE-2025-20265 — Critical (CVSS 10.0): A vulnerability in the RADIUS subsystem implementation of Cisco Secure Firewall Management Center (FMC) Software could…
CVE-2025-20337 — Critical (CVSS 10.0): A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-20281 — Critical (CVSS 10.0): A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2024-42472 — Critical (CVSS 10.0): Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.14.0 and 1.15.10, a malicious…

Browse all CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities →