EUVD-2026-21085

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unauthenticated, network-based attacker to cause an integrity impact to downstream networks. When the same family inet or...

CVE-2026-33773

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unauthenticated, network-based attacker to cause an integrity impact to downstream networks. When the same family inet or...

Juniper Networks Junos OS 安全漏洞

Juniper Networks Junos OS is a network operating system specifically designed for hardware devices used by Juniper Networks. This operating system provides secure programming interfaces and the Junos SDK. There are security vulnerabilities in the Junos OS 23.4R2-S6 version and 24.2R2-S3 version...

CVE-2026-33781: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX and QFX Series devices allow an unauthenticated, adjacent attacker to cause a complete Denial of Service DoS. On EX4k, and QFX5k platforms configur...

CVE-2026-33774: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass the configured firewall filter and access the control-plane of the device. On MX platform...

CVE-2026-33773: Incorrect Initialization of Resource

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unauthenticated, network-based attacker to cause an integrity impact to downstream networks. When the same family inet or...

CVE-2026-21906

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker sending a specific ICMP packet through a GRE tunnel to cause the PFE to crash and restart. When PowerMode...

CVE-2026-21903

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21903

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21906 Junos OS: SRX Series: With GRE performance acceleration enabled, receipt of a specific ICMP packet causes the PFE to crash

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker sending a specific ICMP packet through a GRE tunnel to cause the PFE to crash and restart. When PowerMode...

CVE-2026-21903

CVE-2026-21903 is a stack-based buffer overflow in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS. A network-based attacker with low privileges can trigger a Denial-of-Service by subscribing to telemetry sensors at scale, which causes all FPC connections to drop, an FPC crash, an...

CVE-2026-21903 Junos OS: Subscribing to telemetry sensors at scale causes all FPCs to crash

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21903

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

EUVD-2026-2692

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21903: Stack-based Buffer Overflow

A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service DoS. Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting...

CVE-2026-21910: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on EX4k Series and QFX5k Series platforms allows an unauthenticated network-adjacent attacker flapping an interface to cause traffic between VXLAN Network...

Juniper Networks Junos OS code-related vulnerabilities

Juniper Networks Junos OS is a network operating system specifically designed for hardware devices used by Juniper Networks. This operating system provides secure programming interfaces and the Junos SDK. Code vulnerabilities existed in versions prior to Junos OS 21.4R3-S12, all versions of Junos...

Juniper Networks Junos OS security vulnerabilities

Juniper Networks Junos OS is a network operating system specifically designed for hardware devices used by Juniper Networks. This operating system provides secure programming interfaces and the Junos SDK. Vulnerabilities exist in versions of Juniper Networks Junos OS prior to 21.4R3-S12, 22.4R3-S...

PT-2026-3118

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 22.4R3-S7 Juniper Networks Junos OS versions prior to 23.2R2-S4 Juniper Networks Junos OS versions prior to 23.4R2 Description A Stack-based Buffer Overflow exists in the Packet Forwarding Engine pfe...

The vulnerability of the Packet Forwarding Engine (PFE) module of the JunOS operating system, which allows a hacker to trigger a service failure.

The vulnerability of the Packet Forwarding Engine PFE module in the JunOS operating system is related to the use of an uninitialized resource. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...