CVE-2025-60011

An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon rpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an availability impact for downstream devices. When an affected device receives a...

CVE-2026-21921 Junos OS and Junos OS Evolved: When telemetry collectors are frequently subscribing and unsubscribing to sensors chassisd or rpd will crash

A Use After Free vulnerability in the chassis daemon chassisd of Juniper Networks Junos OS and Junos OS Evolved allows a network-based attacker authenticated with low privileges to cause a Denial-of-Service DoS. When telemetry collectors are frequently subscribing and unsubscribing to sensors...

CVE-2026-21920 Junos OS: SRX Series: If a specific request is processed by the DNS subsystem flowd will crash

An Unchecked Return Value vulnerability in the DNS module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX Series device configured for DNS processing, receives a specifically formatted DNS request flowd will...

CVE-2026-21918 Junos OS: SRX and MX Series: When TCP packets occur in a specific sequence flowd crashes

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

EUVD-2026-2697

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918 Junos OS: SRX and MX Series: When TCP packets occur in a specific sequence flowd crashes

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

CVE-2026-21918 describes a Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX and MX Series. The issue allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS) by sending a specific sequence of TCP packets during session...

EUVD-2026-2689

An Improper Validation of Syntactic Correctness of Input vulnerability in the Web-Filtering module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX device configured for UTM Web-Filtering receives a specifical...

CVE-2026-21917 Junos OS: SRX Series: Specifically malformed SSL packet causes FPC crash

An Improper Validation of Syntactic Correctness of Input vulnerability in the Web-Filtering module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX device configured for UTM Web-Filtering receives a specifical...

CVE-2026-21917 Junos OS: SRX Series: Specifically malformed SSL packet causes FPC crash

An Improper Validation of Syntactic Correctness of Input vulnerability in the Web-Filtering module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX device configured for UTM Web-Filtering receives a specifical...

EUVD-2026-2683

An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service Dos. If an SRX Series device receives a specifically malformed GPRS Tunnelling Protocol GTP Modify Bearer Request message, ...

CVE-2026-21914

CVE-2026-21914 describes an Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series. A specially crafted GTP Modify Bearer Request can cause a lock to be acquired and never released, preventing other threads from acquiring it, triggering a watchdog timeout and ...

CVE-2026-21913 Junos OS: EX4000: A high volume of traffic destined to the device leads to a crash and restart

An Incorrect Initialization of Resource vulnerability in the Internal Device Manager IDM of Juniper Networks Junos OS on EX4000 models allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On EX4000 models with 48 ports EX4000-48T, EX4000-48P, EX4000-48MP a high volu...

EUVD-2026-2688

An Incorrect Initialization of Resource vulnerability in the Internal Device Manager IDM of Juniper Networks Junos OS on EX4000 models allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On EX4000 models with 48 ports EX4000-48T, EX4000-48P, EX4000-48MP a high volu...

CVE-2026-21913

An Incorrect Initialization of Resource vulnerability in the Internal Device Manager IDM of Juniper Networks Junos OS on EX4000 models allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On EX4000 models with 48 ports EX4000-48T, EX4000-48P, EX4000-48MP a high volu...

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

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 ...

CVE-2026-21909

CVE-2026-21909 affects Junos OS and Junos OS Evolved: a Missing Release of Memory after Effective Lifetime vulnerability in rpd allows an unauthenticated adjacent IS-IS neighbor to craft packets that leak memory, eventually crashing rpd and causing DoS. Affected: Junos OS from 23.2 before 23.2R2;...