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VULNERABILITIES

CVE-2023-4966 Details

Description

Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

Metrics

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4966 CISA-ADPUS Government Resource
http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html CVEThird Party AdvisoryVDB Entry
https://support.citrix.com/article/CTX579459 CVEVendor Advisory
http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html [email protected]Third Party AdvisoryVDB Entry
https://support.citrix.com/article/CTX579459 [email protected]Vendor Advisory

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability NameDate AddedDue DateRequired Action
Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow VulnerabilityOct 18, 2023Nov 8, 2023Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]

Affected Products

ProductVersions
citrix netscaler application delivery controller
>= 12.1, < 12.1-55.300
>= 13.0, < 13.0-92.19
>= 13.1, < 13.1-37.164
>= 13.1, < 13.1-49.15
>= 14.1, < 14.1-8.50

CPE

  • 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:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.
citrix netscaler gateway
>= 13.0, < 13.0-92.19
>= 13.1, < 13.1-49.15
>= 14.1, < 14.1-8.50

CPE

  • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

22 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-4966
NVD Published Date:
Oct 10, 2023
NVD Last Modified:
Jul 31, 2026
Source:
[email protected]
CVE-2023-4966 Details - Not Deferred