How severe is CVE-2024-5491?

CVE-2024-5491 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-5491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5491?

CVE-2024-5491 primarily affects Citrix Netscaler Application Delivery Controller. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-5491?

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-2024-5491 have an EU (EUVD) identifier?

Yes. CVE-2024-5491 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46701.

When was CVE-2024-5491 published?

CVE-2024-5491 was published on 2024-07-10 and last updated on 2026-06-17.

CVE-2024-5491

CVE-2024-5491 is a high-severity vulnerability in Citrix Netscaler Application Delivery Controller with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.2
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46701
Affected product: Citrix Netscaler Application Delivery Controller
Published: 2024-07-10
Last modified: 2026-06-17

Description

Denial of Service in NetScaler ADC and NetScaler Gateway in NetScaler

Frequently asked questions

What is CVE-2024-5491?: Denial of Service in NetScaler ADC and NetScaler Gateway in NetScaler
How severe is CVE-2024-5491?: CVE-2024-5491 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-5491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5491?: CVE-2024-5491 primarily affects Citrix Netscaler Application Delivery Controller. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-5491?: 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-2024-5491 have an EU (EUVD) identifier?: Yes. CVE-2024-5491 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46701.
When was CVE-2024-5491 published?: CVE-2024-5491 was published on 2024-07-10 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

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