CVE-2019-0068

CVE-2019-0068 affects Juniper Networks Junos OS on SRX Series, where the SRX flowd process may crash and restart when handling specific multicast packets. A remote, unauthenticated attacker can trigger a sustained Denial of Service by repeatedly sending the crafted multicast traffic, causing the ...

CVE-2021-31361

CVE-2021-31361 affects Juniper Networks Junos OS on QFX Series and PTX Series. The issue stems from an improper check and handling of exceptional conditions, allowing an unauthenticated network attacker to increase FPC CPU utilization by sending certain IP packets encapsulated in VXLAN, causing a...

CVE-2021-31383

CVE-2021-31383 affects Juniper Networks Junos OS and Junos OS Evolved, where in P2MP scenarios the routing protocol daemon (RPD) may crash due to a source-to-destination copy-write operation paired with a stack-based buffer overflow on certain crafted packets. This leads to a DoS that can become ...

CVE-2022-22174

Summary of CVE-2022-22174 (Juniper Junos OS on QFX5000/EX4600) : A vulnerability in the processing of inbound IPv6 packets can cause a memory leak where freed memory is not released, leading to a packet DMA memory leak and a sustained Denial of Service (DoS). Impact occurs when specific IPv6 pack...

CVE-2022-22207

CVE-2022-22207 is a Use After Free vulnerability in Juniper Networks Junos OS, affecting the MX Series with affected AFT aftmand processing. The root cause is intensive polling of AF interface statistics, which can crash the kernel and cause a Denial of Service. Impact is a sustained DoS due to r...

CVE-2024-21594

CVE-2024-21594 affects Juniper Networks Junos OS on the SRX 5000 Series. It is a heap-based buffer overflow in the Network Services Daemon (NSD) that, when a specific command is repeatedly executed, can corrupt memory and cause a crash of the Flow Processing Daemon (flowd), requiring an NSD resta...

CVE-2024-30388

CVE-2024-30388 (Junos OS, PFE) : An improper isolation vulnerability in the Packet Forwarding Engine on QFX5000 Series and EX Series allows an unauthenticated adjacent attacker to trigger an LACP flap by receiving a specific malformed LACP packet, causing traffic loss (DoS). Affected: Junos OS on...

CVE-2024-30397

CVE-2024-30397 affects Juniper Networks Junos OS, specifically the pkid daemon responsible for certificate verification. An improper check for unusual or exceptional conditions allows an unauthenticated network attacker to trigger a DoS by causing pkid to consume CPU and become unresponsive, brea...

CVE-2024-39511

The CVE-2024-39511 entry concerns Juniper Networks Junos OS: an improper input validation vulnerability in the 802.1X Authentication (dot1x) Daemon. When an operator runs a specific dot1x command, the dot1x daemon may crash, causing a Denial of Service that clears all 802.1x client authentication...

CVE-2024-47504

CVE-2024-47504 affects Juniper Networks Junos OS on SRX5000 Series. Vulnerability arises from improper validation of a specific input type in the packet forwarding engine (pfe), allowing an unauthenticated, network-based attacker to trigger a flowd crash and DoS by sending a malformed packet to n...

CVE-2025-30652

CVE-2025-30652 affects Juniper Junos OS and Junos OS Evolved. The vulnerability is an improper handling of exceptional conditions in the routing protocol daemon (rpd) that allows a local, low-privilege attacker to trigger a Denial of Service by executing a specific CLI command when asregex-optimi...

CVE-2019-0006

Summary of CVE-2019-0006 (Juniper Junos FXPC): A crafted HTTP packet can trigger an uninitialized function pointer dereference in the Packet Forwarding Engine manager (FXPC) on EX, QFX and MX Series devices in a Virtual Chassis. This can crash the fxpc daemon or potentially allow remote code exec...

CVE-2019-0063

CVE-2019-0063 concerns Juniper Networks Junos OS on MX Series BRAS configured as BNG with DHCPv6 enabled, where a specifically crafted DHCP response on a subscriber interface can crash the jdhcpd daemon. The crash triggers an automatic restart, but repeated crafted messages may cause an extended ...

CVE-2019-0071

CVE-2019-0071 affects Junos OS on EX2300/EX2300-C/EX3400 with versions 18.1R3-S4 and 18.3R1-S3. The Veriexec file-integrity subsystem can fail to initialize, effectively disabling integrity checks and allowing a locally authenticated user with shell access to install untrusted executables and esc...

CVE-2019-0075

The CVE-2019-0075 issue affects Juniper Networks Junos OS on SRX Series, specifically the srxpfe process when handling Protocol Independent Multicast (PIM) messages. A vulnerable state can cause the srxpfe process to crash and trigger an FPC reboot, potentially leading to an extended denial-of-se...

CVE-2021-0258

CVE-2021-0258 describes a DoS vulnerability in Juniper Networks Junos OS where forwarding of transit TCPv6 packets on the Ethernet management interface can trigger a kernel panic. The issue arose from a TCP Parallelization feature introduced in Junos OS 17.2, active by default with concurrent net...

CVE-2021-0263

Summary: CVE-2021-0263 describes a DoS in Juniper Junos OS PTX Series caused by heavy J-Flow sampling churn in the Multi-Service process (multi-svcs) on the FPC, which can stall the KRT queue and halt updates, impacting traffic forwarding. Affected component is the Multi-Service process running o...

CVE-2021-0287

CVE-2021-0287 affects Juniper Networks Junos OS and Junos OS Evolved in SR-ISIS/MPLS with ISIS Flexible Algorithm and sensor-based statistics. A flap of an ISIS link can crash and restart the RPD, causing Denial of Service (DoS). Affected versions include Junos OS: 19.4 prior to 19.4R1-S4 and 19....

CVE-2021-31376

CVE-2021-31376 affects Juniper Networks Junos OS on ACX Series (ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096). The issue is an improper input validation in the FXPC (Packet Forwarding Engine manager) that can be triggered by specific DHCPv6 packets, crashing FXPC and caus...

CVE-2018-0034

The CVE-2018-0034 issue affects Juniper Networks Junos OS JDHCPD. A crafted IPv6 DHCP packet can cause the JDHCPD daemon to core-dump on systems processing IPv6 DHCP packets (not IPv4). Affected releases include multiple Junos OS lines, with many versions prior to specific build-suffixed revision...

CVE-2021-0238

CVE-2021-0238 affects Junos OS on MX Series: repeatedly executing a CLI command may exhaust disk space, causing partial availability impact. Vulnerable versions include MX Series 17.3R1 and newer, up to but not including 17.4R3-S5, then 18.1–20.4 with various sub-versions listed; the issue does n...

CVE-2021-31377

CVE-2021-31377 affects Juniper Networks Junos OS. A local authenticated attacker can exploit an Incorrect Permission Assignment for a Critical Resource in a file in the Junos filesystem to cause the Routing Process Daemon (RPD) to crash and restart, resulting in a DoS . Affected versions include ...

CVE-2021-31378

CVE-2021-31378 affects Juniper Networks Junos OS in broadband subscriber management scenarios where RADIUS is used. An attacker can spoof messages from trusted RADIUS servers to a device after a subscriber logs in and requests logout, forcing the subscriber into a persistent “Terminating” state v...

CVE-2021-31385

CVE-2021-31385 describes a path traversal flaw in Juniper Networks Junos OS J-Web. The issue arises from an improper limitation of a pathname to a restricted directory, allowing a low-privileged authenticated attacker to elevate privileges to root. Affected Junos OS versions include multiple rele...

CVE-2022-22169

CVE-2022-22169 affects Juniper Networks Junos OS and Junos OS Evolved. An improper initialization in the routing protocol daemon (rpd) can cause OSPFv3 to enter graceful-restart GR helper mode when a attacker sends crafted packets in specific order/timing, potentially causing a DoS via a stalled ...

CVE-2022-22177

CVE-2022-22177 affects Juniper Networks Junos OS and Junos OS Evolved. The issue is an illegal memory vulnerability in the snmpd daemon that can be triggered by crafted SNMP input, causing the snmpd process to segfault or halt and resulting in a sustained Denial of Service until manual restart. A...

CVE-2022-22220

The CVE-2022-22220 issue is a TOCTOU race condition in Juniper Junos OS/rpd that can crash the process when a BGP flow route with a redirect IP is received while the next-hop reachability is flapping, enabling a network-based DoS. Affected software includes Junos OS and Junos OS Evolved across li...

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-2024-30382

Juniper Networks Junos OS and Junos OS Evolved are affected by CVE-2024-30382 via an Improper Handling of Exceptional Conditions in the routing protocol daemon (rpd). A network-based, unauthenticated attacker can trigger a specific routing update when CB F (CoS-based forwarding) is configured wit...

CVE-2024-39529

CVE-2024-39529 describes a Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Junos OS on SRX Series, allowing an unauthenticated, network-based attacker to cause a DoS. Affected Junos OS versions include: prior to 21.4R3-S6; 22.2 before 22.2R3-S3; 2...

CVE-2025-21597

CVE-2025-21597 covers an issue in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. When BGP rib-sharding and update-threading are configured, a remote, unauthenticated, logically adjacent BGP peer can cause rpd to crash and restart via a specific timing of peer...

CVE-2017-10607

The CVE-2017-10607 issue affects Juniper Networks Junos OS 16.1R1 and related service releases. A crafted BGP PDU sent directly to the router can crash the rpd routing process, causing a denial of service due to repeated daemon restarts. The vulnerability is confined to 16.1R1 family and is not p...

CVE-2019-0065

Junos OS on MX Series is affected by CVE-2019-0065 due to a malformed SIP packet that, when the SIP ALG is enabled, can crash the MS-PIC component on MS-MIC or MS-MPC and cause a sustained DoS. Affected releases include MX Series across multiple track versions prior to fixed builds: 16.1R7-S5, 16...

CVE-2021-0288

CVE-2021-0288 affects Juniper Junos OS on MX Series and EX9200 Series with Trio-based MPCs. The vulnerability stems from how specific MPLS packets are processed, potentially causing the FPC to crash and triggering a DoS if packets continue to arrive. Affected versions are listed in the core CVE d...

CVE-2022-22161

CVE-2022-22161 describes an Uncontrolled Resource Consumption vulnerability in the Juniper Networks Junos OS kernel. An unauthenticated network-based attacker can flood the out-of-band management port, causing 100% CPU usage and making the device unresponsive; continued floods yield a sustained D...

CVE-2022-22176

CVE-2022-22176 — Junos OS jdhcpd DoS Affected product: Juniper Networks Junos OS. The vulnerability arises from improper validation of syntactic correctness in jdhcpd. An adjacent, unauthenticated attacker can send a malformed DHCP packet to crash jdhcpd, causing a Denial of Service. The impact i...

CVE-2022-22201

CVE-2022-22201 affects Juniper Networks Junos OS on SRX5000/SRX4000/vSRX with PowerMode IPsec. The Packet Forwarding Engine (PFE) crashes when receiving a malformed ESP packet that matches an established IPsec tunnel, due to improper validation of index/position/offset in input. Impact is Denial ...

CVE-2023-22408

CVE-2023-22408 affects Juniper Networks Junos OS on SRX 5000 Series. The vulnerability is an improper validation of an array index in the SIP ALG, triggered by specific SIP packets with malformed SDP fields. This can allow a network-based, unauthenticated attacker to cause a Denial of Service by ...

CVE-2023-22412

CVE-2023-22412 is an improper locking vulnerability in Juniper Junos OS SIP ALG that can crash the flow processing daemon (flowd) on MX Series and SRX Series when certain SIP messages are processed concurrently with SIP ALG enabled, leading to DoS. Affected firmware ranges are: MX/SRX 20.4 prior ...

CVE-2023-22417

CVE-2023-22417 affects Juniper Networks Junos OS on SRX Series, where the Flow Processing Daemon (flowd) can leak memory in IPsec VPN scenarios when DH/ECDH groups are configured, potentially crashing the flowd process and causing DoS. Affected versions include SRX/JunOS releases prior to the fix...

CVE-2024-39561

CVE-2024-39561 affects Juniper Junos OS on SRX4600/SRX5000 Series. The vulnerability stems from an improper check in the flow daemon (flowd) that can allow TCP packets with SYN/FIN or SYN/RST flags to bypass the intended block when no-syn-check and Express Path are enabled, causing such packets t...

CVE-2025-30653

CVE-2025-30653 describes an Expired Pointer Dereference in Juniper Networks Junos OS and Junos OS Evolved RPD (Routing Protocol Daemon). When an MPLS LSP is configured with node-link-protection and transport-class and an LSP flaps, rpd can crash and restart, causing a Denial of Service. Affected ...

CVE-2025-30658

CVE-2025-30658 affects Junos OS on SRX Series with Anti-Virus enabled. A memory leak in the Anti-Virus jbufs is triggered by certain HTTP responses, enabling an unauthenticated, network-based attacker to cause a DoS by exhausting jbuf memory and halting transit traffic. Affected versions (per Jun...

CVE-2018-0019

Summary of CVE-2018-0019 (Junos SNMP mib2d DoS) Affected product: Juniper Networks Junos OS, specifically the SNMP MIB-II subagent daemon (mib2d). Root cause / vulnerability: A remote attacker could cause mib2d to crash, yielding a denial-of-service condition for the SNMP subsystem. The published...

CVE-2019-0056

Juniper Networks Junos OS on MX480/MX960/MX2008/MX2010/MX2020 is affected by CVE-2019-0056. The vulnerability is an Insufficient Resource Pool in OSPF that lets an attacker drive OSPF states to Down, causing a DoS affecting all IPv4/IPv6 traffic routed by OSPF. Exploitation requires a high rate o...

CVE-2019-0060

The vulnerability CVE-2019-0060 affects Juniper Junos OS on SRX Series where the flowd process may crash and restart while processing specific transit IP packets through an IPSec tunnel, potentially causing a Denial of Service (DoS). Affected versions include Junos OS 15.1X49 prior to 15.1X49-D17...

CVE-2021-0205

CVE-2021-0205 concerns Juniper Junos OS on MX Series when IDS is configured with a dynamic firewall filter using IPv6 prefixes. The issue causes the prefix to be incorrectly matched as /32, potentially blocking legitimate traffic. Affects MX Series devices with MS-MPC/MS-MIC/MS-SPC3 cards and IDS...

CVE-2021-0250

CVE-2021-0250 is a vulnerability in Juniper Networks Junos OS (and Junos OS Evolved) where, in SRTE/BGP monitoring contexts, processing a crafted BGP update message can cause the Routing Protocol Daemon (RPD) to core, leading to a DoS. Affected: Junos OS versions 17.4R1 and later before 17.4R2-S6...

CVE-2021-31366

CVE-2021-31366 is an Unchecked Return Value vulnerability in the authd (authentication daemon) of Juniper Networks Junos OS on MX Series configured for subscriber management/BBE. A adjacent attacker can trigger a crash by sending a specific username, causing a DoS affecting AAA services on affect...

CVE-2022-22166

CVE-2022-22166 affects Juniper Networks Junos OS rpd (routing protocol daemon). A DoS can be triggered by receiving a BGP update with a malformed SR-TE policy tunnel attribute when BGP update tracing is enabled, causing an rpd crash that does not propagate. Affected are Junos OS 20.4 versions pri...