PT-2026-56976 · Juniper Networks · Junos

Publicado

2026-07-09

·

Atualizado

2026-07-09

·

CVE-2026-57022

CVSS v3.1

5.9

Média

VetorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device initiates a TCP connection to an attacker-controlled system that responds with a specific packet, this causes a PFE crash and restart, which affects all services until the system has automatically recovered. This issue can happen among others in the following scenarios: ALG, SSL proxy, UTM, RTLOG, AppQoE probing, AAMW, ICAP, URL filtering.
This issue affects Junos OS on MX Series with SPC3, SRX5k Series with SPC3, SRX1600 Series, SRX2300 Series, SRX4000 Series, and vSRX Series:
  • all versions before 23.2R2-S4,
  • 23.4 versions before 23.4R2-S5,
  • 24.2 versions before 24.2R2.

Correção

Improper Check for Exceptional Conditions

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Enumeração de Fraquezas

CWE-754

Identificadores relacionados

CVE-2026-57022

Produtos afetados

Junos