CVE-2016-1278

CVE-2016-1278 affects Juniper Junos OS on SRX Series devices. A failed upgrade to 12.1X46 can cause the device to revert to a safe mode with a flaw that allows root CLI logins without a password via the partition option of the upgrade, enabling local privilege escalation. Affected component is th...

CVE-2017-10610

CVE-2017-10610 affects Juniper Networks Junos OS on SRX Series. A crafted ICMP packet inside a NAT64 IPv6→IPv4 tunnel can crash the flowd process, causing extended denial of service if NAT64 is configured. Affected releases are Junos OS 12.1X46 before 12.1X46-D71, 12.3X48 before 12.3X48-D55, and ...

CVE-2017-10614

CVE-2017-10614 concerns a denial-of-service via the telnetd service in Junos OS. A remote attacker can trigger memory and/or CPU consumption to cause limited DoS. Affected Junos OS releases include 12.1X46 (before 12.1X46-D45), 12.3X48 (before 12.3X48-D30), 14.1 (before 14.1R4-S9, 14.1R8), 14.2 (...

CVE-2017-2342

CVE-2017-2342 affects Juniper Networks Junos OS on SRX300 series (15.1X49 prior to 15.1X49-D100). The MACsec feature may not report errors when a secure link cannot be established, causing a fallback to an unencrypted link and potentially misleading operators into believing the connection is secu...

CVE-2017-2343

CVE-2017-2343 affects Juniper Junos SRX Series with the Integrated User Firewall (UserFW) authentication API. The root cause is hardcoded credentials in UserFW, enabling an unauthenticated, remote attacker to potentially gain administrative access to the SRX device and compromise connected servic...

CVE-2018-0031

CVE-2018-0031 affects Juniper Networks Junos OS where processing of transit UDP/IP packets over MPLS on MPLS-enabled interfaces can bypass a stateless firewall filter. The vulnerability requires specially crafted UDP packets encapsulated in an exact format; while individual packets do not crash s...

CVE-2018-0048

The CVE-2018-0048 issue resides in the Routing Protocols Daemon (RPD) with Juniper Extension Toolkit (JET) support in Junos OS. A network-based unauthenticated attacker can trigger memory exhaustion on affected devices, severely impacting performance and availability. Affected Junos OS versions i...

CVE-2019-0012

CVE-2019-0012 describes a DoS in Juniper Junos OS for VPLS PE: processing a crafted BGP message crashes the rpd daemon, potentially causing extended DoS due to repeated restarts. Affected are PE routers with BGP Auto discovery for LDP VPLS. Vulnerable releases include multiple Junos OS versions l...

CVE-2019-0038

The CVE-2019-0038 entry concerns Juniper SRX340/SRX345 devices running Junos OS. Affected component: management interface (fxp0). Root cause: crafted packets destined to fxp0 can exhaust buffer space, causing a denial of service (DoS) and service unresponsiveness. Impact is DoS affecting only SRX...

CVE-2020-1605

CVE-2020-1605 affects Juniper Networks JDHCPD (relay mode) in Junos OS/Junos OS Evolved. A crafted IPv4 packet can cause arbitrary root command execution on the target via the JDHCPD process handling. Affected are IPv4 JDHCPD services; vulnerable versions include multiple releases listed (e.g., J...

CVE-2020-1639

Affected product: Juniper Networks Junos OS. Issue: processing of specially crafted Ethernet OAM packets causes the CFM daemon to overflow due to improper handling of malformed data, leading to a Denial of Service (DoS) by crashing the CFM process; continued packet receipt can extend the DoS. Aff...

CVE-2020-1650

CVE-2020-1650 affects Juniper Networks Junos OS on MX Series using MS-PIC/MS-MIC/MS-MPC service cards. A stream of specific packets can crash the MS-PIC component, enabling a sustained Denial of Service on affected MX Series devices (versions listed in the description). The connected documents pr...

CVE-2021-0272

CVE-2021-0272 affects Juniper Networks Junos OS on QFX10002-32Q/60C/72Q and QFX10008/QFX10016; it is a kernel memory leak in FPCs that can be triggered by processing genuine packets in EVPN-VXLAN scenarios, enabling DoS with possible device crashes/restarts on affected models. Public documents co...

CVE-2021-0299

This CVE (CVE-2021-0299) affects Juniper Networks Junos OS and is triggered by processing malformed IPv6 packets. A kernel crash occurs, restarting the device and causing a Denial of Service (DoS); sustained DoS can follow with continued malformed packets. Affected are IPv6-enabled devices runnin...

CVE-2023-36838

CVE-2023-36838 affects Juniper Networks Junos OS on SRX Series, with an out-of-bounds read in the flow processing daemon (flowd) that a local, authenticated, low-privilege attacker can exploit by issuing a specific CLI command to crash flowd and cause a DoS. The vulnerability can produce a core d...

CVE-2023-44194

CVE-2023-44194 affects Juniper Networks Junos OS. The vulnerability is due to incorrect default permissions in a system directory, allowing an unauthenticated, locally-present attacker to create a backdoor with root privileges. Affected versions include all before 20.4R3-S5, 21.1 before 21.1R3-S4...

CVE-2024-39532

Summary: CVE-2024-39532 affects Juniper Networks Junos OS and Junos OS Evolved. Local, authenticated attackers with high privileges can access sensitive information stored in a log file when a specific operation is performed, due to insertion of sensitive information into the log. Affected versio...

CVE-2024-39540

The CVE-2024-39540 affects Juniper Junos OS on SRX Series and MX Series with SPC3. Root cause: improper check for unusual or exceptional conditions in the Packet Forwarding Engine (pfe). Impact: unauthenticated, network‑based attacker can cause a DoS by sending specific valid TCP traffic, causing...

CVE-2026-21905

CVE-2026-21905 affects Juniper Junos OS on SRX Series and MX Series with MX-SPC3 or MS-MPC. The vulnerability is a loop with an unreachable exit condition in the SIP application layer gateway (ALG) that can be triggered by processing multiple SIP messages over TCP. This causes the flow management...

CVE-2004-0468

CVE-2004-0468 describes a memory leak in Juniper’s JUNOS Packet Forwarding Engine (PFE) that can be exploited remotely by IPv6 packets to cause memory exhaustion and router reboot (DoS). OpenVAS notes a DoS vulnerability in Juniper Junos OS DoS vulnerability (CVE-2004-0468) tied to memory leakage...

CVE-2014-0617

The CVE-2014-0617 issue affects Juniper Junos OS on SRX Series gateways, with affected versions: 10.4S before 10.4S15, 10.4R before 10.4R16, 11.4 before 11.4R9, and 12.1R before 12.1R7. The vulnerability is in the flow daemon (flowd) and allows a remote attacker to cause a denial of service (flow...

CVE-2014-6379

The CVE-2014-6379 entry applies to Juniper Networks Junos OS. When a RADIUS accounting server is configured as the system accounting destination radius, Junos may create an entry in /var/etc/pam_radius.conf, enabling an authentication bypass via unspecified vectors. Affected versions include 11.4...

CVE-2014-6448

CVE-2014-6448 affects Juniper Networks Junos OS: versions 13.2 before 13.2R5, 13.2X51, 13.2X52, and 13.3 before 13.3R3. The vulnerability allows local users to bypass restrictions and execute arbitrary Python code through vectors involving shell access. The cited sources describe a local privileg...

CVE-2016-1256

CVE-2016-1256 affects Juniper Junos OS across many releases (e.g., before 12.1X44-D55, 12.3R10, 14.2R4, 15.1X49-D10, etc.). The vulnerability arises in IGMPv3 handling, allowing a remote, unauthenticated attacker to cause a denial of service by sending a malformed IGMPv3 packet, impacting multica...

CVE-2016-4923

CVE-2016-4923 affects Junos OS J-Web. The vulnerability arises from insufficient cross-site scripting protection in the J-Web component, enabling a remote unauthenticated user to inject script/HTML, potentially stealing data and allowing administrative actions on the Junos device. Affected releas...

CVE-2017-2341

CVE-2017-2341 covers an insufficient authentication vulnerability in Junos OS when run in a virtualized environment, enabling a guest to escalate to the host. Affected Junos OS releases include 14.1X53 pre-D40 (QFX5110, QFX5200, QFX10002/10008/10016, EX4600, NFX250), 15.1 pre-R5 (EX4600), 15.1X49...

CVE-2018-0002

Summary (CVE-2018-0002) : On SRX Series and MX Series devices with a Service PIC and ALG enabled, a crafted TCP/IP response packet can cause memory corruption that crashes the flowd daemon, leading to a Denial of Service. Affected releases include multiple Junos OS branches across SRX and MX plat...

CVE-2018-0005

CVE-2018-0005 affects Juniper Networks Junos OS on QFX and EX Series switches. When MAC move limit is exceeded, the device forwards instead of dropping, enabling a denial-of-service/unstable behavior. Affected releases: Junos OS 14.1X53 before 14.1X53-D40; 15.1X53 before 15.1X53-D55; 15.1 before ...

CVE-2018-0053

CVE-2018-0053 affects Juniper Networks Junos OS on vSRX Series. During the initial boot sequence, an authentication bypass may allow an attacker to gain full control of the system without authentication on Junos OS 15.1X49 prior to 15.1X49-D30. Affected product/version: vSRX, Junos OS 15.1X49 pri...

CVE-2018-0063

CVE-2018-0063 affects Juniper Networks Junos OS 17.3R3, where the IP next-hop index database for the management interface can be flooded by ARP requests, exhausting the private IRI next-hop space and causing a sustained DoS. Once the next-hop database is full, no new next hops can be learned and ...

CVE-2019-0015

Summary: CVE-2019-0015 affects Junos OS on SRX Series (multiple releases) where a token caching error allows deleted dynamic VPN users to establish connections until a reboot. Affected versions: SRX 12.3X48 before 12.3X48-D75; 15.1X49 before 15.1X49-D150; 17.3 before 17.3R3; 17.4 before 17.4R2; 1...

CVE-2019-0019

CVE-2019-0019 describes a DoS vulnerability in Juniper Junos OS where enabling BGP tracing may cause the routing protocol daemon (rpd) to crash and restart on receipt of certain BGP messages. Repeated crashes can extend the DoS condition. Affected Junos OS releases include 16.1 (before 16.1R7-S4,...

CVE-2020-1607

CVE-2020-1607 is a Junos OS/J-Web cross-site scripting vulnerability. The root cause is insufficient XSS protection in J-Web, allowing a remote attacker to inject scripts or HTML to hijack an authenticated user’s J-Web session and perform admin actions. Affected software ranges are extensive, inc...

CVE-2020-1613

The CVE describes a vulnerability in Juniper Junos OS BGP FlowSpec handling where receiving a specific FlowSpec advertisement can terminate an established BGP session. Affected products include Junos OS versions listed in the CVE (e.g., 12.3, 12.3X48, 14.1X53, 15.1R7-S5 and earlier, 16.1R7-S7 and...

CVE-2020-1615

CVE-2020-1615 affects Juniper Junos OS on vMX installations where the factory configuration ships with default root credentials. The issue is due to default credentials stored in the vMX configuration, enabling an unauthenticated user to access the vMX instance if the credentials are not changed....

CVE-2020-1629

CVE-2020-1629 describes a race-condition vulnerability in Juniper Networks Junos OS where the Routing Protocol Daemon (RPD) may crash and restart while processing a BGP NOTIFICATION message. Affected versions include Junos OS 16.1 prior to 16.1R7-S6; 16.2 prior to 16.2R2-S11; 17.1 prior to 17.1R2...

CVE-2020-1649

CVE-2020-1649 affects Juniper Junos OS on MX Series with MPC7/8/9 line cards when inline IP reassembly is enabled. Continuous receipt of small fragments that cannot be reassembled can disable the packet forwarding engine (PFE), causing a sustained DoS. Affected Junos OS versions are listed across...

CVE-2021-0227

CVE-2021-0227 concerns a memory buffer bound-checking issue in Juniper Networks Junos OS J-Web on SRX Series devices that can enable a Denial of Service via crafted HTTP packets. Affected products include Junos OS on SRX Series with the listed version ranges (e.g., 17.3 before 17.3R3-S9; 17.4 bef...

CVE-2021-0235

The CVE-2021-0235 issue affects Juniper Networks Junos OS on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, and vSRX Series in multi-tenant environments. Root cause: incorrect permission scheme assigned to tenant system administrators, which may allow a tenant admin to misdire...

CVE-2021-0254

CVE-2021-0254 affects Juniper Networks Junos OS, where a buffer size validation issue in the overlayd service (Overlay OAM) can be triggered by unauthenticated, specially crafted UDP packets to port 4789, potentially causing partial DoS or remote code execution. The overlayd daemon runs as root a...

CVE-2021-0259

CVE-2021-0259 affects Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in VXLAN configurations. The issue arises from DDoS protection logic, where an improperly detected DDoS violation can cause a leaf to drop processing of certain L2 traffic from spines in the underlay, al...

CVE-2022-22208

CVE-2022-22208 describes a Use After Free in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (rdp) triggered by BGP session flaps. The race condition causes rpd crashes, leading to a network-based Denial of Service, with impact depending on the affected release. Affected ra...

CVE-2022-22251

Summary: CVE-2022-22251 affects Juniper Networks Junos OS on cSRX Series. The root cause is software permission issues in the container filesystem and stored files, combined with storing passwords in a recoverable format, enabling a local, low-privileged attacker to elevate privileges and take co...

CVE-2023-28962

The CVE-2023-28962 issue is a Junos OS J-Web vulnerability (upload-file.php) caused by improper authentication, enabling an unauthenticated, network-based attacker to upload arbitrary files to temporary folders. Affected products/versions include Juniper Networks Junos OS prior to 19.4R3-S11; 20....

CVE-2023-28974

CVE-2023-28974 affects Juniper Networks Junos OS on MX Series. The vulnerability is in the bbe-smgd process and stems from an improper check for unusual or exceptional conditions, allowing an unauthenticated adjacent attacker to crash bbe-smgd by sending a specifically malformed ICMP packet. Impa...

CVE-2023-44193

CVE-2023-44193 affects Juniper Networks Junos OS on MX Series hardware. The issue is an improper release of memory before removing the last reference in the Packet Forwarding Engine (PFE) that, when CFM is enabled in a VPLS scenario and a specific LDP-related command is executed, can cause an FPC...

CVE-2024-39554

CVE-2024-39554 affects Juniper Networks Junos OS and Junos OS Evolved when BGP multipath is enabled. The vulnerability is in the Routing Protocol Daemon (rpd) caused by a race condition from concurrent execution using shared resources during the BGP multipath incremental calculation, which can al...

CVE-2025-21595

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved can cause an FPC crash and DoS. In EVPN-VXLAN, receiving specific ARP (IPv4) or NDP (IPv6) packets triggers kernel heap memory leaks and event...

CVE-2009-3485

CVE-2009-3485 is a cross-site scripting (XSS) vulnerability in the J-Web interface of Juniper JUNOS 8.5R1.14 and 9.0R1.1. The issue allows remote attackers to inject arbitrary web script or HTML via PATH_INFO to the default URI. Affected component: J-Web (Junos OS). Root cause: insufficient input...

CVE-2017-10618

The CVE-2017-10618 issue affects Juniper Junos OS where enabling the bgp-error-tolerance feature can be abused by a BGP UPDATE containing specially crafted transitive attributes to cause the RPD routing process to crash and restart. Affected releases include numerous Junos versions across 13.3, 1...