csirt@kutim:~/threat-intel/cve/CVE-2026-33781

Katalog CVE

CVSS 6.5 · Medium EPSS 0,27%

Kerentanan Improper Check for Unusual or Exceptional Conditions pada juniper junos. Skor CVSS 3.1 6.5 (Medium) menurut juniper.net.

Deskripsi (NVD)

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX and QFX Series devices allow an unauthenticated, adjacent attacker to cause a complete Denial of Service (DoS). On EX4k, and QFX5k platforms configured as service-provider edge devices, if L2PT is enabled on the UNI and VSTP is enabled on NNI in VXLAN scenarios, receiving VSTP BPDUs on UNI leads to packet buffer allocation failures, resulting in the device to not pass traffic anymore until it is manually recovered with a restart.This issue affects Junos OS: * 24.4 releases before 24.4R2, * 25.2 releases before 25.2R1-S1, 25.2R2. This issue does not affect Junos OS releases before 24.4R1.

Rincian

Terbit di NVD
9 April 2026
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
6.5 (Medium), sumber juniper.net
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-754: Improper Check for Unusual or Exceptional Conditions
EPSS (30 hari)
0,27% peluang dieksploitasi; lebih tinggi dari 17,6% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
juniper junos Versi 24.4
juniper junos Versi 24.4 r1
juniper junos Versi 24.4 r1-s2
juniper junos Versi 24.4 r1-s3
juniper junos Versi 25.2
juniper junos Versi 25.2 r1
juniper junos Versi 25.2 r2

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.