CVE-2026-21903

Katalog CVE

CVSS 6.5 · Medium EPSS 0,40%

Kerentanan Stack-based Buffer Overflow pada juniper junos. Skor CVSS 3.1 6.5 (Medium) menurut juniper.net.

Deskripsi (NVD)

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service (DoS). Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting in an FPC crash and restart. The issue was not seen when YANG packages for the specific sensors were installed. This issue affects Junos OS:  * all versions before 22.4R3-S7, * 23.2 version before 23.2R2-S4, * 23.4 versions before 23.4R2.

Rincian

Terbit di NVD

15 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber juniper.net
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-121: Stack-based Buffer Overflow

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://kb.juniper.net/JSA106022 advisory vendor
• https://supportportal.juniper.net/JSA106022 advisory vendor