Juniper Networks — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
10
occurrences
First Seen
February 9, 2026
Last Seen
April 14, 2026

Juniper Networks is a organization tracked across 3 threat clusters and 10 intelligence report mentions on ThreatCluster. First observed February 9, 2026; most recent activity April 14, 2026.

Related Threat Clusters

  • Critical DoS Vulnerabilities Found in Juniper Junos OS

    Two vulnerabilities, CVE-2026-33782 and CVE-2026-33783, have been identified in Juniper Junos OS that could allow attackers to trigger a complete Denial of Service (DoS) on affected devices. CVE-2026-33782 (CVSS 8.7)…

    2 articles · Updated April 14, 2026
  • Critical Vulnerability in Juniper PTX Routers Allows Remote Code Execution

    A critical vulnerability identified as CVE-2026-21902 affects the Junos OS Evolved on PTX Series routers, enabling unauthenticated attackers to execute code with root privileges. These routers are widely used by…

    15 articles · Updated February 26, 2026
  • Singapore Telcos Targeted by UNC3886 Cyberattack

    In July 2025, an advanced persistent threat actor known as UNC3886 targeted Singapore's four telecommunications companies, compromising critical infrastructure. The attack was detected by the Infocomm Media Development…

    78 articles · Updated February 9, 2026

Recent Intelligence Reports

  • CVE 2026 33783 — nvd.nist.gov · April 14, 2026
  • Warning: Vulnerabilities in Juniper Junos OS allow Denial of Service (CVE-2026 — Ccb.Belgium.Be · April 14, 2026
  • Juniper Networks PTX Vulnerability Enables Full Router Takeover — Cybersecuritynews · February 27, 2026
  • Junos OS Evolved: Out-of-cycle update closes code smuggling vulnerability — Heise.De · February 27, 2026
  • Critical vulnerability in Junos OS Evolved PTX Series — Csa.Sg · February 27, 2026
  • Juniper Networks PTX Vulnerability Allows Full Router Takeover, Exposing Networks — Gbhackers · February 27, 2026
  • H — Aha · February 26, 2026
  • 2026-02 Out-of-Cycle Security Bulletin: Junos OS Evolved: PTX Series: A vulnerability ... — Supportportal.Juniper · February 26, 2026

CVSS v3.1 Breakdown