CVE-2025-21590

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device. A local attacker with access to the shell is able to inject arbitrary code which can compromise an affecte...

CVE-2025-21590

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device. A local attacker with access to the shell is able to inject arbitrary code which can compromise an affecte...

Chinese Hackers Breach Juniper Networks Routers With Custom Backdoors and Rootkits

The China-nexus cyber espionage group tracked as UNC3886 has been observed targeting end-of-life MX Series routers from Juniper Networks as part of a campaign designed to deploy custom backdoors, highlighting their ability to focus on internal networking infrastructure. "The backdoors had varying...

CVE-2025-21590

CVE-2025-21590 – Junos OS kernel vulnerability : An improper isolation/compartmentalization flaw in the Junos OS kernel allows a local attacker with shell access and high privileges to inject arbitrary code and compromise device integrity (not exploitable from the Junos CLI). Affected are Junos O...

CVE-2025-21590

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device. A local attacker with access to the shell is able to inject arbitrary code which can compromise an affecte...

Juniper Session Smart Routers Vulnerability Could Let Attackers Bypass Authentication

Juniper Networks has released security updates to address a critical security flaw impacting Session Smart Router, Session Smart Conductor, and WAN Assurance Router products that could be exploited to hijack control of susceptible devices. Tracked as CVE-2025-21589 , the vulnerability carries a...

Juniper Networks Junos OS Evolved Memory Misreference Vulnerability

Juniper Networks Junos OS Evolved is an upgraded version of Juniper Networks' Junos OS. A memory misreference vulnerability exists in Juniper Networks Junos OS Evolved, which arises from a failure to free kernel memory when processing certain malformed IPv6 packets, and can be exploited by an...

CVE-2024-39564

This is a similar, but different vulnerability than the issue reported as CVE-2024-39549. A double-free vulnerability in the routing process daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to...

CVE-2024-39564

This is a similar, but different vulnerability than the issue reported as CVE-2024-39549. A double-free vulnerability in the routing process daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to...

⚡ THN Weekly Recap: Top Cybersecurity Threats, Tools and Tips [27 January]

Welcome to your weekly cybersecurity scoop! Ever thought about how the same AI meant to protect our hospitals could also compromise them? This week, we're breaking down the sophisticated world of AI-driven threats, key updates in regulations, and some urgent vulnerabilities in healthcare tech tha...

New VPN Backdoor

A newly discovered VPN backdoor uses some interesting tactics to avoid detection: When threat actors use backdoor malware to gain access to a network, they want to make sure all their hard work can't be leveraged by competing groups or detected by defenders. One countermeasure is to equip the...

Juniper Networks Junos Space Detection Consolidation

Consolidation of Juniper Networks Junos Space detections. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only include"pluginfeedinfo.inc"; if...

CVE-2025-21598

An Out-of-bounds Read vulnerability in Juniper Networks Junos OS and Junos OS Evolved's routing protocol daemon rpd allows an unauthenticated, network-based attacker to send malformed BGP packets to a device configured with packet receive trace options enabled to crash rpd. This issue affects:...

CVE-2025-21602

An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a specific BGP update packet to cause rpd to crash and restart, resulting in a Denial of Service Do...

CVE-2025-21600

An Out-of-Bounds Read vulnerability in the routing protocol daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service DoS...

CVE-2025-21592

An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the command-line interface CLI of Juniper Networks Junos OS on SRX Series devices allows a local, low-privileged user with access to the Junos CLI to view the contents of sensitive files on the file system. Through the...

CVE-2025-21596

An Improper Handling of Exceptional Conditions vulnerability in the command-line processing of Juniper Networks Junos OS on SRX1500, SRX4100, and SRX4200 devices allows a local, low-privileged authenticated attacker executing the 'show chassis environment pem' command to cause the chassis daemon...

CVE-2025-21599

A Missing Release of Memory after Effective Lifetime vulnerability in the Juniper Tunnel Driver jtd of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to cause Denial of Service. Receipt of specifically malformed IPv6 packets, destined to the device, causes...

CVE-2025-21600

An Out-of-Bounds Read vulnerability in the routing protocol daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service DoS...

CVE-2025-21600 Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash

An Out-of-Bounds Read vulnerability in the routing protocol daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service DoS...