SB2025041472 - Heap-based buffer overflow in Juniper Junos OS

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2025041472

SB2025041472 - Heap-based buffer overflow in Juniper Junos OS

Published: April 14, 2025

Security Bulletin ID SB2025041472
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) Heap-based buffer overflow (CVE-ID: CVE-2025-30644)

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

A Heap-based Buffer Overflow vulnerability in the flexible PIC concentrator (FPC) of Juniper Networks Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series allows an attacker to send a specific DHCP packet to the device, leading to an FPC crash and restart, resulting in a Denial of Service (DoS).

Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.


Remediation

Install update from vendor's website.

References