How severe is CVE-2025-8424?

CVE-2025-8424 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2025-8424 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8424?

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-2025-8424 have an EU (EUVD) identifier?

Yes. CVE-2025-8424 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25868.

When was CVE-2025-8424 published?

CVE-2025-8424 was published on 2025-08-26 and last updated on 2026-06-17.

CVE-2025-8424

CVE-2025-8424 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-1284.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25868
Weakness: CWE-1284
Published: 2025-08-26
Last modified: 2026-06-17

Description

Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway when an attacker can get access to the appliance NSIP, Cluster Management IP or local GSLB Site IP or SNIP with Management Access

Frequently asked questions

What is CVE-2025-8424?: Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway when an attacker can get access to the appliance NSIP, Cluster Management IP or local GSLB Site IP or SNIP with Management Access
How severe is CVE-2025-8424?: CVE-2025-8424 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2025-8424 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-8424?: 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-2025-8424 have an EU (EUVD) identifier?: Yes. CVE-2025-8424 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25868.
When was CVE-2025-8424 published?: CVE-2025-8424 was published on 2025-08-26 and last updated on 2026-06-17.

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938

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