CVE-2026-19490

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi EPSS 23,2%

Kerentanan Authentication Bypass Using an Alternate Path or Channel pada citrix netscaler application delivery controller, citrix netscaler gateway. Skor CVSS 3.1 9.8 (Critical) menurut NVD. Masuk katalog KEV CISA pada 9 September 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

Advisory KUTIM-CSIRT

• Peringatan Keamanan: Tiga Kerentanan Kritis NetScaler ADC dan Gateway Dieksploitasi Aktif 28 Sep 2026

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

7 Oktober 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-288: Authentication Bypass Using an Alternate Path or Channel

EPSS (30 hari)

23,2% peluang dieksploitasi; lebih tinggi dari 97,7% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability

Masuk KEV

9 September 2026

Tenggat CISA

12 September 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939 advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490 pemerintah AS