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CVE-2024-8534

Memory safety vulnerability leading to memory corruption and Denial of Service

HIGH
8.1
CVSS Score
Published: November 12, 2024 at 06:15 PM UTC
Updated: June 17, 2026 at 08:22 AM UTC
6 products affected across 3 vendorsNetScaler GatewayNetscaler Application Delivery ControllerADC

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Severity
HIGH8.1
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Netscaler Application Delivery Controller· Citrix
95%
12.1 ≤ v < 12.1-55.32112.1 ≤ v < 13.1-55.3413.1 ≤ v < 13.1-37.20714.1 ≤ v < 14.1-29.72
Affected range stops below 12.1-55.321, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.1-37.207, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.1-55.34, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1-29.72, so it looks safe — our inference, not a vendor statement
NetScaler Gateway· Citrix
95%
12.1 ≤ v < 13.1-55.3414.1 ≤ v < 14.1-29.72
Affected range stops below 13.1-55.34, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1-29.72, so it looks safe — our inference, not a vendor statement
ADC· Netscaler
90%
12.1 ≤ v < 12.1-55.32113.1 ≤ v < 13.1-37.20713.1 ≤ v < 13.1-55.3414.1 ≤ v < 14.1-29.7212.113.114.1
Affected range stops below 12.1-55.321, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.1-37.207, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.1-55.34, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1-29.72, so it looks safe — our inference, not a vendor statement
Gateway· Netscaler
60%
14.1 ≤ v < 14.1-29.7214.1
Affected range stops below 14.1-29.72, so it looks safe — our inference, not a vendor statement
NetScaler Gateway· Netscaler
60%
12.1-FIPS ≤ v < 55.32112.1-NDcPP ≤ v < 55.32113.1 ≤ v < 55.3413.1-FIPS ≤ v < 37.20714.1 ≤ v < 29.7212.1-FIPS12.1-NDcPP13.113.1-FIPS14.1
Affected range stops below 29.72, so it looks safe — our inference, not a vendor statement
Affected range stops below 37.207, so it looks safe — our inference, not a vendor statement
Affected range stops below 55.321, so it looks safe — our inference, not a vendor statement
Affected range stops below 55.34, so it looks safe — our inference, not a vendor statement
NetScaler ADC· Netsclaer
60%
12.1-FIPS ≤ v < 55.32112.1-NDcPP ≤ v < 55.32113.1 ≤ v < 55.3413.1-FIPS ≤ v < 37.20714.1 ≤ v < 29.7212.1-FIPS12.1-NDcPP13.113.1-FIPS14.1
Affected range stops below 29.72, so it looks safe — our inference, not a vendor statement
Affected range stops below 37.207, so it looks safe — our inference, not a vendor statement
Affected range stops below 55.321, so it looks safe — our inference, not a vendor statement
Affected range stops below 55.34, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://support.citrix.com/s/article/CTX691608-netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20248534-and-cve20248535?language=en_US

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-787

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