---
id: "CVE-2026-103394"
kind: "vulnerability"
aliases: ["CVE-2026-103394"]
title: "Juniper Session Smart Router: improper initialization lets attackers decrypt traffic"
severity: "low"
cvss: 3.7
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "juniper", "network-gear", "session-smart-router"]
not_affected_if: []
published_at: "2026-10-28T17:17:23+00:00"
first_seen_at: "2026-10-28T17:34:08+00:00"
updated_at: "2026-10-28T17:34:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103394", "first_seen_at": "2026-10-28T17:34:08+00:00"}]
---

# Juniper Session Smart Router: improper initialization lets attackers decrypt traffic

The SSR software in Juniper's Session Smart Router has an improper initialization flaw in security policy assignment. An attacker can decrypt traffic or cause a denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-28T17:34:08+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-103394

## From the sources

An Improper Initialization vulnerability in the SSR software in Juniper Networks Session Smart Router allows an attacker to decrypt traffic or cause a denial of service via security policy assignment.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_