CVE-2026-0257

Katalog CVE

CVSS 9.1 · Critical KEV · sudah dieksploitasi Dipakai ransomware EPSS 96,9%

Kerentanan Reliance on Cookies without Validation and Integrity Checking pada paloaltonetworks pan-os. Skor CVSS 3.1 9.1 (Critical) menurut NVD. Masuk katalog KEV CISA pada 29 Mei 2026, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues.

Advisory KUTIM-CSIRT

• Peringatan Keamanan: Kerentanan Kritis CVE-2026-0257 pada Palo Alto Networks PAN-OS yang Dieksploitasi Secara Aktif 30 Mei 2026

Rincian

Terbit di NVD

13 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-565: Reliance on Cookies without Validation and Integrity Checking

EPSS (30 hari)

96,9% peluang dieksploitasi; lebih tinggi dari 99,8% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Palo Alto Networks PAN-OS Authentication Bypass Vulnerability

Masuk KEV

29 Mei 2026

Tenggat CISA

1 Juni 2026 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

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. Ditampilkan 60 dari 162 konfigurasi; daftar lengkap ada di NVD.

Referensi dan perbaikan

• https://security.paloaltonetworks.com/CVE-2026-0257 advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0257 pemerintah AS
• https://cert-portal.siemens.com/productcert/html/ssa-967325.html advisory pihak ketiga