SB2025041878 - Improper input validation in Juniper Junos OS



SB2025041878 - Improper input validation in Juniper Junos OS

Published: April 18, 2025

Security Bulletin ID SB2025041878
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper input validation (CVE-ID: CVE-2025-30649)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation error in the syslog stream TCP transport . A remote non-authenticated attacker can send specific spoofed packets to cause a CPU Denial of Service (DoS) to the MX-SPC3 SPUs.


Remediation

Install update from vendor's website.