CVE-2023-6549

Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549	Vendor Advisory
https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549

Configurations

Configuration 1 (hide)

OR	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_application_delivery_controller:::::fips:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::-:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::-:::*
	cpe:2.3:a:citrix:netscaler_gateway::::::::
	cpe:2.3:a:citrix:netscaler_gateway::::::::
	cpe:2.3:a:citrix:netscaler_gateway::::::::

History

21 Oct 2025, 23:16

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549 -

21 Oct 2025, 20:19

Type	Values Removed	Values Added
References	~~{'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}~~

21 Oct 2025, 19:20

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549 -

Information

Published : 2024-01-17 21:15

Updated : 2025-10-21 23:16

NVD link : CVE-2023-6549

Mitre link : CVE-2023-6549

CVE.ORG link : CVE-2023-6549

JSON object : View

Products Affected

citrix

netscaler_application_delivery_controller
netscaler_gateway

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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