CVE-2026-21910

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...

CVE-2026-21910

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...

CVE-2026-21910 Junos OS: EX4k Series, QFX5k Series: In an EVPN-VXLAN configuration link flaps cause Inter-VNI traffic drop

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...

CVE-2026-21910

CVE-2026-21910 affects Junos OS on EX4k Series and QFX5k Series with EVPN-VXLAN LAG/VPLAG. An unauthenticated, network-adjacent attacker can trigger a link flap, which in configurations with multiple load-balanced next-hops can cause Inter-VNI traffic to drop, resulting in DoS. Recovery requires ...

PT-2026-3124

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...

EUVD-2020-12549

Malware in sbrugna...

EUVD-2020-12551

Malware in sbrugna...

EUVD-2021-2822

Malicious code in bioql PyPI...

EUVD-2023-26568

Malicious code in bioql PyPI...

EUVD-2025-10519

Malicious code in bioql PyPI...

EUVD-2021-2878

Malicious code in bioql PyPI...

EUVD-2021-2856

Malicious code in bioql PyPI...

CVE-2025-30644

CVE-2025-30644 is a heap-based buffer overflow in the FPC of Juniper Junos OS on EX2300/EX3400/EX4100/EX4300/EX4300MP/EX4400/EX4600/EX4650-48Y and QFX5k. The issue allows an attacker to send a specific DHCP packet (DHCP Option 82 scenario can trigger memory corruption) that crashes the FPC and re...

CVE-2023-22405

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service DoS to device due to out of resources. When a device...

CVE-2023-22405 Junos OS: QFX5k Series, EX46xx Series: MAC limiting feature stops working after PFE restart or device reboot

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service DoS to device due to out of resources. When a device...

CVE-2023-22405 Junos OS: QFX5k Series, EX46xx Series: MAC limiting feature stops working after PFE restart or device reboot

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service DoS to device due to out of resources. When a device...

CVE-2023-22405

CVE-2023-22405 describes a DoS in Juniper Networks Junos OS caused by an improper preservation of consistency between independent representations of shared state in the Packet Forwarding Engine (PFE). When devices run with service-provider/SP style switching and MAC limiting on an Aggregated Ethe...

CVE-2021-0237

On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager FXPC process may crash and restart upon receipt of specific layer 2 frames. Continued receipt and processi...

Design/Logic Flaw

Due to a vulnerability in DDoS protection in Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in a VXLAN configuration, instability might be experienced in the underlay network as a consequence of exceeding the default ddos-protection aggregate threshold. If an attacker on ...

CVE-2021-0259 Junos OS and Junos OS Evolved: QFX5K Series: Underlay network traffic might not be processed upon receipt of high rate of specific genuine overlay packets in VXLAN scenario

Due to a vulnerability in DDoS protection in Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in a VXLAN configuration, instability might be experienced in the underlay network as a consequence of exceeding the default ddos-protection aggregate threshold. If an attacker on ...