How severe is CVE-2025-3543?

CVE-2025-3543 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-2025-3543 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-2025-3543?

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-2025-3543 have an EU (EUVD) identifier?

Yes. CVE-2025-3543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10862.

When was CVE-2025-3543 published?

CVE-2025-3543 was published on 2025-04-14 and last updated on 2026-06-17.

CVE-2025-3543

CVE-2025-3543 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-2025-10862
Weakness: CWE-74
Published: 2025-04-14
Last modified: 2026-06-17

Description

A vulnerability has been found in H3C Magic NX15, Magic NX30 Pro, Magic NX400 and Magic R3010 up to V100R014 and classified as critical. This vulnerability affects the function FCGI_WizardProtoProcess of the file /api/wizard/setsyncpppoecfg of the component HTTP POST Request Handler. The manipulation leads to command injection. Access to the local network is required for this attack. 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-2025-3543?: A vulnerability has been found in H3C Magic NX15, Magic NX30 Pro, Magic NX400 and Magic R3010 up to V100R014 and classified as critical. This vulnerability affects the function FCGI_WizardProtoProcess of the file /api/wizard/setsyncpppoecfg of the component HTTP POST Request Handler. The manipulation leads to command injection. Access to the local network is required for this attack. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.
How severe is CVE-2025-3543?: CVE-2025-3543 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-2025-3543 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-2025-3543?: 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-2025-3543 have an EU (EUVD) identifier?: Yes. CVE-2025-3543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10862.
When was CVE-2025-3543 published?: CVE-2025-3543 was published on 2025-04-14 and last updated on 2026-06-17.

References

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