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Δ / VULNERABILITY RECORD

CVE-2023-4966.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.
EXPLOITATION STATUSCISA known exploitedAdded Oct 18, 2023
RECORD STATUSAwaiting NVD dataModified Oct 18, 2023

Disclosure summary

Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.

CISA remediation guidance

Apply 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.

Original records & references

PUBLISHED 2023-10-18T00:00:00-04:00
MODIFIED 2023-10-18T00:00:00-04:00
INGESTED 2026-10-06T11:42:58-04:00