CVE-2025-6543
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
CVSS
—
Sem CVSS
EPSS
10.4%
p96
KEV
SIM
30 de jun. de 2025
Exploit Today
79
0-100
Publicado: — · Última mod.: —
Produto
Citrix / NetScaler ADC and Gateway
Vulnerabilidade
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
Adicionado ao KEV
30 de jun. de 2025
Corrigir até
21 de jul. de 2025
Uso conhecido em ransomware
Não
Descrição resumida
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.
Ação necessária
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notas
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 ; https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-6543