CVE detail

CVE-2025-6543 — Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability

Published 2025-06-30 · Modified 2025-06-30 · Source kev

HIGH

severity

CVSS-derived band

n/a

CVSS v3

0–10 scale

0.1009

EPSS probability

exploitation probability, 30d

95.0%

EPSS percentile

percentile vs all CVEs

LISTED

CISA KEV

due 2025-07-21

Description

Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.

Remediation

No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.