How severe is CVE-2025-6090?

CVE-2025-6090 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-6090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-6090?

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-2025-6090 have an EU (EUVD) identifier?

Yes. CVE-2025-6090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18341.

When was CVE-2025-6090 published?

CVE-2025-6090 was published on 2025-06-15 and last updated on 2026-06-17.

CVE-2025-6090

CVE-2025-6090 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18341
Weakness: CWE-119
Published: 2025-06-15
Last modified: 2026-06-17

Description

A vulnerability was found in H3C GR-5400AX V100R009L50 and classified as critical. This issue affects the function UpdateWanparamsMulti/UpdateIpv6params of the file /routing/goform/aspForm. The manipulation of the argument param leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor confirms the existence of this issue. Because they assess the risk as low, they do not have immediate plans for remediation.

Frequently asked questions

What is CVE-2025-6090?: A vulnerability was found in H3C GR-5400AX V100R009L50 and classified as critical. This issue affects the function UpdateWanparamsMulti/UpdateIpv6params of the file /routing/goform/aspForm. The manipulation of the argument param leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor confirms the existence of this issue. Because they assess the risk as low, they do not have immediate plans for remediation.
How severe is CVE-2025-6090?: CVE-2025-6090 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-6090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-6090?: 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-2025-6090 have an EU (EUVD) identifier?: Yes. CVE-2025-6090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18341.
When was CVE-2025-6090 published?: CVE-2025-6090 was published on 2025-06-15 and last updated on 2026-06-17.

References

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

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