CVE-2020-1687

CVE-2020-1687 affects Junos OS on Juniper EX4300-MP, EX4600 and QFX5K series used as EVPN-VXLAN L2/L3 gateways. The issue occurs when receiving a stream of specific VXLAN-encapsulated L2 frames within the same EVPN-VXLAN domain, causing high CPU load and potentially impacting network protocol ope...

CVE-2021-0231

CVE-2021-0231 describes a path-traversal information-disclosure vulnerability in Juniper Networks Junos OS on SRX and vSRX Series. An authenticated J-web user can read sensitive system files. Affected versions include Junos OS 19.3 up to 19.3R2-S6 and 19.3R3-S1; 19.4 up to 19.4R2-S4 and 19.4R3; 2...

CVE-2021-0270

CVE-2021-0270 impacts Juniper Networks Junos OS on PTX Series and QFX10K Series when the inline-Jflow feature is enabled. The issue is described as a use-after-free in the Packet Forwarding Engine (PFE) microkernel, leading to a DoS through restarting one or more FPCs and generating core files du...

CVE-2025-60011

CVE-2025-60011 describes an improper check for unusual or exceptional conditions in Juniper Junos OS and Junos OS Evolved rpd, enabling an unauthenticated, network-based attacker to cause availability impact on downstream devices. When a device receives a specific optional transitive BGP attribut...

CVE-2026-57024

The CVE-2026-57024 entry concerns Juniper Junos OS on MX-SPC3 and SRX Series devices, where the iked process can crash under a high volume of VPN negotiation failures. According to the connected documents, repeated VPN failures cause a peer index rollover, leading to new peers being assigned indi...

CVE-2013-6012

CVE-2013-6012 – Juniper Junos system affected by an authentication bypass when the no-validate option is enabled. The affected products are Juniper Junos 12.1X44 before 12.1.X44-D20 and 12.1X45 before 12.1X45-D15. The root cause is improper handling of configuration validation errors during the c...

CVE-2013-6015

The CVE describes a Denial of Service in Juniper Junos SRX Series flowd when a plugin using TCP proxy is configured. Affected versions include Junos before 10.4S14, 11.4 before 11.4R5-S2, 12.1R before 12.1R3, 12.1X44 before 12.1X44-D20, and 12.1X45 before 12.1X45-D15. The issue arises from handli...

CVE-2015-5359

The CVE covers Juniper Junos OS with a DoS caused by a NULL pointer dereference in RPD triggered by a flood of BGP-VPLS advertisements that update BGP local preference values. Affected are multiple Junos releases (various 12.x–15.x lines listed in the description). Root cause is improper handling...

CVE-2016-1258

The CVE-2016-1258 entry concerns Juniper Junos OS J-Web, which uses Embedthis AppWeb. Affected versions include Junos OS prior to specific builds listed in the description (e.g., before 12.1X44-D60, 12.1X46 before 12.1X46-D45, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R10, 12.3X48 before 12.3X4...

CVE-2016-1267

CVE-2016-1267 affects Juniper Networks Junos OS by a race condition in the RPC functionality. Affected Junos OS versions include 12.1X44-D55 and earlier, 12.3R11 and earlier, 13.2R8 and earlier, 14.1R6 and earlier, 14.2R3-S4, 15.1F2/15.1R2, and 16.1R1. The underlying issue allows local users to r...

CVE-2016-1280

CVE-2016-1280 affects Juniper Junos OS: remote attackers can bypass certificate validation by presenting a self-signed cert whose issuer name matches a valid Junos CA, impacting certificates used for IKE/IPsec. Affected Junos versions span many 12.x–16.1 releases (e.g., before specific revisions ...

CVE-2016-1277

Juniper Junos OS versions listed (various 12.1X, 12.3X, 13.3, 14.x, 15.x) are affected when GRE or IPIP tunnels are configured. The issue is triggered by a crafted ICMP packet, causing a remote kernel panic and resulting in a denial of service. The attack is network-reachable and does not require...

CVE-2020-1641

The CVE-2020-1641 entry describes a race-condition in Juniper Networks Junos OS LLDP handling: crafted LLDP packets can cause the LLDP process to crash, resulting in a Denial of Service. The issue is tied to memory/resource limits (RLIMIT) and may produce multiple LACP flaps after the LLDP crash....

CVE-2020-1669

CVE-2020-1669 affects Juniper Networks Junos OS on NFX350 devices via the JDM container that stores password hashes in the world-readable /etc/passwd. Root cause: password hashes are readable by local attackers. Impact: local access could enable brute-force decryption of hashes, with confidential...

CVE-2013-6170

CVE-2013-6170 affects Juniper Networks Junos OS (Junos 10.0 before 10.0S28, 10.4 before 10.4R7, 11.1 before 11.1R5, 11.2 before 11.2R2, and 11.4 before 11.4R1) in a Next-Generation Multicast VPN (NGEN MVPN) environment. The vulnerability arises from handling a large number of crafted PIM (S,G) jo...

CVE-2020-1661

Summary of CVE-2020-1661 : Juniper Networks Junos OS devices acting as DHCP forwarders with the forward-only option may experience a crash in the jdhcpd daemon when processing malformed DHCP packets. This can lead to an extended Denial of Service (DoS) as jdhcpd restarts automatically but continu...

CVE-2026-33775

CVE-2026-33775 describes a memory leak (Missing Release of Memory after Effective Lifetime) in Juniper Junos OS MX Series bbe-smgd that can be triggered by a mismatch between configured and received packet types. An adjacent, unauthenticated attacker may cause a DoS by exhausting heap memory, aft...

CVE-2016-1279

CVE-2016-1279 affects Juniper Networks Junos OS J-Web. The vulnerability could allow a remote attacker to obtain sensitive information and thereby gain administrative privileges via unspecified vectors. Affected Junos versions include J-Web on 12.1X46-D45/50, 12.1X47-D35, 12.3R12, 12.3X48-D25, 13...

CVE-2020-1609

CVE-2020-1609 describes a vulnerability in Juniper JDHCPD (IPv6 in relay mode) that allows an attacker to arbitrarily execute commands as root on target devices. Affected software includes Junos OS and Junos OS Evolved versions listed in the CVE description (various 15.1, 16.x, 17.x, 18.x, and 19...

CVE-2025-52988

The CVE-2025-52988 issue is a local OS command injection in the CLI of Juniper Networks Junos OS and Junos OS Evolved. The underlying flaw allows a high-privilege attacker to execute commands as root when crafting arguments to the command 'request system logout', enabling complete device compromi...

CVE-2026-21901

CVE-2026-21901 describes a NULL pointer dereference in Juniper Networks Junos OS and Junos OS Evolved mgd (management daemon) when a local, high-privileged user configures or deactivates a specific 'system services ssh' parameter. The vulnerability causes an mgd crash and restart, enabling a sust...

CVE-2006-3529

Juniper JUNOS IPv6 denial-of-service vulnerability (CVE-2006-3529) affects JUNOS 6.4–8.0 built before 10 May 2006. The issue is a memory leak where memory allocated for certain IPv6 packets is not freed, allowing remote attackers to exhaust kernel packet memory and crash the device. Affected devi...

CVE-2014-6378

CVE-2014-6378 affects Juniper Networks Junos OS. The vulnerability arises in RSVP processing where RSVP PATH messages are improperly handled, allowing a remote attacker to cause denial of service by crashing the router protocol daemon (rpd). Affected Junos releases include versions listed in the ...

CVE-2016-1276

CVE-2016-1276 affects Juniper Junos OS on High-End SRX-Series chassis with one or more Application Layer Gateways (ALGs) enabled. A DoS can be triggered by remote attackers via in-transit traffic matching ALG rules, causing CPU consumption, fab link failure, or flip-flop failovers. Affected versi...

CVE-2024-47499

CVE-2024-47499 affects Juniper Networks Junos OS and Junos OS Evolved. An unauthenticated, network-based attacker can trigger a DoS by sending a malformed AS PATH attribute over an established BGP session in BMP rib-in pre-policy monitoring, causing the RPD to crash and restart. The issue affects...

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-2026-33774

CVE-2026-33774 affects Junos OS on Juniper MX Series (MPC10/11, LC4800/LC9600 line cards and MX304). An improper check allows an unauthenticated, network-based attacker to bypass firewall filters applied to loopback interfaces lo0.n (n != 0) that are in the default routing instance, enabling pote...

CVE-2026-33778

CVE-2026-33778 affects Junos OS on SRX Series and MX Series. The vulnerability is in the IPsec library used by kmd/iked, where processing a specifically malformed first ISAKMP packet can cause the kmd/iked process to crash and restart. This results in a momentary inability to establish new securi...

CVE-2026-33780

CVE-2026-33780 concerns a memory leak in Juniper Networks’ l2ald within Junos OS and Junos OS Evolved that is triggered by churn of EVPN-MPLS ESI routes learned from remote multi-homed PE devices. The issue stems from a memory management logic flaw where memory allocated for ESI routes is not rel...

CVE-2026-33793

CVE-2026-33793 describes an Execution with Unnecessary Privileges in the Junos OS/Junos OS Evolved UI. If a device has a configuration that allows unsigned Python op scripts, a non-root user can run malicious op scripts and escalate to root-equivalent privileges, compromising the system. Affected...

CVE-2015-5357

This CVE affects Juniper Junos-operated switches: EX4600, QFX3500, QFX3600, and QFX5100. In the vulnerable software, Junos 13.2X51-D15 to -D25, 13.2X51 before -D30, and 14.1X53 before -D10, allow remote attackers to cause a denial of service by consuming CPU resources via unspecified vectors. The...

CVE-2025-52982

Juniper Junos OS MX Series with MS-MPC SIP ALG is affected. When two or more SIP-processing service sets run, an improper resource shutdown can cause the MS-MPC to crash and restart, enabling unauthenticated network-based DoS. Affected versions: all before 21.2R3-S9; 21.4 from 21.4R1; 22.2 before...

CVE-2026-33791

CVE-2026-33791 affects Junos OS and Junos OS Evolved. The vulnerability lies in the CLI processing of certain crafted set system commands, where arguments are not properly sanitized, enabling an attacker with local, high privileges to inject arbitrary shell commands that execute as root. This can...

CVE-2026-57025

CVE-2026-57025 affects Juniper Junos OS and Junos OS Evolved. The vulnerability is a Return of Pointer Value Outside of Expected Range in the fileio library that enables a local, low-privileged attacker to trigger a Denial-of-Service. On EX Series, QFX Series and MX Series, issuing a specific 'sh...

CVE-2021-0233

CVE-2021-0233 affects Juniper Networks Junos OS on ACX500 Series and ACX4000 Series, where a high rate of specific packets can crash the Forwarding Engine Board (FFEB), causing DoS. Affects 17.4 versions prior to 17.4R3-S2; remediation is to upgrade to 17.4R3-S2 or later (per multiple sources). I...

CVE-2026-57019

CVE-2026-57019 affects Junos OS on MX Series. An issue in the Packet Forwarding Engine (pfe) due to improper validation of a specified quantity in input can allow an unauthenticated adjacent attacker to cause a Denial-of-Service by triggering an FPC major error and a reset, impacting traffic unti...

CVE-2014-6451

Summary: CVE-2014-6451 affects Juniper Networks Junos OS J-Web on SRX5000-series devices, where the J-Web service is vulnerable to a remote denial of service that causes a system reboot. The vulnerability is described with unspecified vectors. Public references in connected data identify the issu...

CVE-2016-1264

The CVE-2016-1264 issue affects Juniper Networks Junos OS, where a race condition in the Op command (through the Op URL option) can allow remote authenticated users to gain elevated privileges. Affected versions span multiple releases across 12.1X, 12.3, 13.2, 13.3, 14.1, 14.2, and 15.x lines (e....

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-2026-57032

CVE-2026-57032 describes an improper handling of undefined parameters in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices. When attempting to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100, and EX4400 via gRPC, the Front Pan...

CVE-2025-52953

CVE-2025-52953 affects Juniper Networks Junos OS and Junos OS Evolved. An unauthenticated adjacent attacker can send a valid BGP UPDATE, causing a BGP session reset and a sustained DoS. Affected releases include: Junos OS before 21.2R3-S9; 21.4 before 21.4R3-S11; 22.2 before 22.2R3-S7; 22.4 befor...

CVE-2025-52955

CVE-2025-52955 describes an Incorrect Calculation of Buffer Size in Juniper Networks Junos OS and Junos OS Evolved rpd when jflow/sflow updates are sent as a routing instance’s logical interface flaps. The issue can cause memory corruption, leading to an rpd crash and restart, with sustained DoS ...

CVE-2025-30661

CVE-2025-30661 affects Juniper Networks Junos OS line cards (MPC10, MPC11, LC4800, LC9600, MX304-LMIC16, SRX4700, EX9200-15C). The root cause is an incorrect permission assignment in line card script processing that lets a local, low-privilege user install scripts which are executed as root at sy...

CVE-2025-52983

CVE-2025-52983 describes a UI discrepancy in Junos OS on VM Host systems (VM Host Routing Engines) that allows a network-based, unauthenticated attacker to access the device. On REs, even after removing the public key for root login, users with the corresponding private key can still log in as ro...

CVE-2025-59957

CVE-2025-59957 affects Juniper Networks Junos OS on EX4600 Series and QFX5000 Series switches. Affected versions: all prior to 21.4R3 and 22.2 prior to 22.2R3-S3. The vulnerability is a runtime/Origin Validation Error in an insufficient protected file , allowing an unauthenticated attacker with p...

CVE-2025-52951

CVE-2025-52951 describes a Protection Mechanism Failure in Juniper Networks Junos OS where kernel filter processing mishandles the payload-protocol match, causing firewall terms to effectively accept all traffic destined for the control plane IPv6 traffic. Affected Junos OS versions include all p...

CVE-2025-52964

CVE-2025-52964 is a Reachable Assertion vulnerability in Juniper Networks Junos OS and Junos OS Evolved rpd. An unauthenticated, network-based attacker can trigger a crash by sending a specific BGP UPDATE packet when BGP multipath pause-computation-during-churn is configured, leading to a sustain...

CVE-2025-60003

CVE-2025-60003 affects Juniper Networks Junos OS and Junos OS Evolved. A Buffer Over-read in the routing protocol daemon (rpd) can be triggered by a BGP update containing specific optional transitive attributes when peers are not 4-byte-AS capable, causing the rpd process to crash and the device ...

CVE-2026-33785

Junoirs OS on MX Series suffers a Missing Authorization vulnerability in the CLI that allows a local, authenticated user with low privileges to run specific 'request csds' commands. The commands are intended for high-privilege Juniper Device Manager (JDM) / CSDS roles and can impact all devices m...

CVE-2026-33790

Threat summary (CVE-2026-33790): Juniper Junos OS on SRX Series is affected by an improper check in the flowd component during NAT64 translation. Receipt of a specific, malformed ICMPv6 packet to the device may crash and restart the srxpfe process, leading to a sustained DoS. Affected software in...