CVE-2025-6543

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi EPSS 10,6%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada citrix netscaler application delivery controller, citrix netscaler gateway. Skor CVSS 3.1 9.8 (Critical) menurut NVD. Masuk katalog KEV CISA pada 30 Juni 2025, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

Rincian

Terbit di NVD

25 Juni 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

EPSS (30 hari)

10,6% peluang dieksploitasi; lebih tinggi dari 95,6% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability

Masuk KEV

30 Juni 2025

Tenggat CISA

21 Juli 2025 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6543 pemerintah AS