CVE-2021-0269

The improper handling of client-side parameters in J-Web of Juniper Networks Junos OS allows an attacker to perform a number of different malicious actions against a target device when a user is authenticated to J-Web. An attacker may be able to supersede existing parameters, including hardcoded...

CVE-2021-0268

An Improper Neutralization of CRLF Sequences in HTTP Headers 'HTTP Response Splitting' weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the...

CVE-2021-0267

An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically...

CVE-2021-0263

A Data Processing vulnerability in the Multi-Service process multi-svcs on the FPC of Juniper Networks Junos OS on the PTX Series routers may lead to the process becoming unresponsive, ultimately affecting traffic forwarding, allowing an attacker to cause a Denial of Service DoS condition . The...

CVE-2021-0262

Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically...

CVE-2021-0252

NFX Series devices using Juniper Networks Junos OS are susceptible to a local code execution vulnerability thereby allowing an attacker to elevate their privileges via the Junos Device Management Daemon JDMD process. This issue affects Juniper Networks Junos OS on NFX Series: 18.1 version 18.1R1...

CVE-2021-0260

An improper authorization vulnerability in the Simple Network Management Protocol daemon snmpd service of Juniper Networks Junos OS leads an unauthenticated attacker being able to perform SNMP read actions, an Exposure of System Data to an Unauthorized Control Sphere, or write actions to OIDs tha...

CVE-2021-0257

On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs Modular Port Concentrators where Integrated Routing and Bridging IRB interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Layer 2 network events at Customer Edge CE devices may cause memo...

CVE-2021-0267

An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically...

CVE-2021-0253

NFX Series devices using Juniper Networks Junos OS are susceptible to a local command execution vulnerability thereby allowing an attacker to elevate their privileges via the Junos Device Management Daemon JDMD process. This issue affects Juniper Networks Junos OS on NFX Series 17.2 version 17.2R...

CVE-2021-0242

A vulnerability due to the improper handling of direct memory access DMA buffers on EX4300 switches on Juniper Networks Junos OS allows an attacker sending specific unicast frames to trigger a Denial of Service DoS condition by exhausting DMA buffers, causing the FPC to crash and the device to...

CVE-2021-0227

An improper restriction of operations within the bounds of a memory buffer vulnerability in Juniper Networks Junos OS J-Web on SRX Series devices allows an attacker to cause Denial of Service DoS by sending certain crafted HTTP packets. Continued receipt and processing of these packets will creat...

CVE-2021-0239

In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit AFT manager process Evo-aftmand, responsible for handling Route, Class-of-Service CoS, Firewall operations within the packet forwarding engine PFE to crash and...

CVE-2021-0233

A vulnerability in Juniper Networks Junos OS ACX500 Series, ACX4000 Series, may allow an attacker to cause a Denial of Service DoS by sending a high rate of specific packets to the device, resulting in a Forwarding Engine Board FFEB crash. Continued receipt of these packets will sustain the Denia...

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...

CVE-2021-0214

A vulnerability in the distributed or centralized periodic packet management daemon PPMD of Juniper Networks Junos OS may cause receipt of a malformed packet to crash and restart the PPMD process, leading to network destabilization, service interruption, and a Denial of Service DoS condition...

CVE-2021-0230

On Juniper Networks SRX Series devices with link aggregation lag configured, executing any operation that fetches Aggregated Ethernet AE interface statistics, including but not limited to SNMP GET requests, causes a slow kernel memory leak. If all the available memory is consumed, the traffic wil...

CVE-2021-0234

Due to an improper Initialization vulnerability on Juniper Networks Junos OS QFX5100-96S devices with QFX 5e Series image installed, ddos-protection configuration changes will not take effect beyond the default DDoS Distributed Denial of Service settings when configured from the CLI. The DDoS...

CVE-2021-0238

When a MX Series is configured as a Broadband Network Gateway BNG based on Layer 2 Tunneling Protocol L2TP, executing certain CLI command may cause the system to run out of disk space, excessive disk usage may cause other complications. An administrator can use the following CLI command to monito...

CVE-2021-0239

In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit AFT manager process Evo-aftmand, responsible for handling Route, Class-of-Service CoS, Firewall operations within the packet forwarding engine PFE to crash and...