Is CVE-2024-8534 in the CISA KEV catalog?

No. CVE-2024-8534 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-8534?

CVE-2024-8534 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2024-8534?

CVE-2024-8534 has an EPSS score of 0.56% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-8534?

Upgrade netscaler application delivery controller to 12.1-55.321 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2024-8534

HIGH

8.1

CVSS v3

NVD

Description

Memory safety vulnerability leading to memory corruption and Denial of Service in NetScaler ADC and Gateway if the appliance must be configured as a Gateway (VPN Vserver) with RDP Feature enabled OR the appliance must be configured as a Gateway (VPN Vserver) and RDP Proxy Server Profile is created and set to Gateway (VPN Vserver) OR the appliance must be configured as a Auth Server (AAA Vserver) with RDP Feature enabled

CWE-119Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

netscaler application delivery controllerNVD

Affected:>= 12.1, < 12.1-55.321Fixed in:12.1-55.321CVE-2024-8534derived from NVD

Affected:>= 13.1, < 13.1-37.207Fixed in:13.1-37.207CVE-2024-8534derived from NVD

Affected:>= 14.1, < 14.1-29.72Fixed in:14.1-29.72CVE-2024-8534derived from NVD

netscaler gatewayNVD

Affected:>= 14.1, < 14.1-29.72Fixed in:14.1-29.72CVE-2024-8534derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.56%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory1

support.citrix.com

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-25.