Privilege escalation

A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local...

Null pointer dereference

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine PFE to crash and restart, resulting in a Denial of Service DoS. By continuously sending these specific packets, an attacker can repeatedly disabl...

Memory corruption

On Juniper Networks Junos EX series, QFX Series, MX Series and SRX branch series devices, a memory leak occurs every time the 802.1X authenticator port interface flaps which can lead to other processes, such as the pfex process, responsible for packet forwarding, to crash and restart. An...

Design/Logic Flaw

A vulnerability in Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS to the device by sending certain crafted protocol packets from an adjacent device with invalid payloads to the device. These crafted packets, which should be discarded, are instead replicated and sent...

Command injection

A command injection vulnerability in install package validation subsystem of Juniper Networks Junos OS that may allow a locally authenticated attacker with privileges to execute commands with root privilege. To validate a package in Junos before installation, an administrator executes the command...

Command injection

A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may allow a locally authenticated attacker with low privileges to execute commands with root privilege. license-check is a daemon used to manage licenses in Junos OS. To update licenses, a user execute...

Design/Logic Flaw

In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address VGA is configured on a PE, a traffic loop may occur upon receipt of specific IP multicast traffic. The traffic loop will cause interface traffic to increase abnormally, ultimately leading to a Denial of Service DoS in...

Heap overflow

On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPC Modular Port Concentrator where Integrated Routing and Bridging IRB interface is configured and it is mapped to a VPLS instance or a Bridge-Domain, certain network events at Customer Edge CE device may cause memory leak...

Design/Logic Flaw

On Juniper Networks EX and QFX5K Series platforms configured with Redundant Trunk Group RTG, Storm Control profile applied on the RTG interface might not take affect when it reaches the threshold condition. Storm Control enables the device to monitor traffic levels and to drop broadcast, multicas...

Design/Logic Flaw

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service DoS. Continued receipt of these types of valid BGP update packets will cause an extended Denia...

CVE-2021-0223

CVE-2021-0223 concerns a local privilege escalation in Juniper Networks Junos OS via telnetd.real, a setuid/root-owned binary. A locally authenticated shell user can escalate to root, with telnetd.real running with root privileges. Affected Junos OS versions include all prior to 15.1R7-S9; 17.3 p...

CVE-2021-0223 Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries

A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local...

CVE-2021-0222

CVE-2021-0222 is a Denial of Service (DoS) vulnerability in Juniper Networks Junos OS. The issue arises when an adjacent device sends crafted IPv4/IPv6 protocol packets with invalid payloads; these packets are (incorrectly) replicated and sent toward the Routing Engine, leading to an extended DoS...

CVE-2021-0221 Junos OS: QFX Series: Traffic loop Denial of Service (DoS) upon receipt of specific IP multicast traffic

In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address VGA is configured on a PE, a traffic loop may occur upon receipt of specific IP multicast traffic. The traffic loop will cause interface traffic to increase abnormally, ultimately leading to a Denial of Service DoS in...

CVE-2021-0221

CVE-2021-0221 affects Juniper Networks Junos OS on QFX Series. A traffic loop can occur when an IRB with VGA is configured in EVPN/VXLAN, leading to DoS in packet processing due to abnormal interface traffic escalation. Public details specify affected Junos OS versions across multiple releases an...

CVE-2021-0219 Junos OS: Command injection vulnerability in 'request system software' CLI command

A command injection vulnerability in install package validation subsystem of Juniper Networks Junos OS that may allow a locally authenticated attacker with privileges to execute commands with root privilege. To validate a package in Junos before installation, an administrator executes the command...

CVE-2021-0219

CVE-2021-0219 is a local command-injection vulnerability in Juniper Junos OS in the install package validation subsystem, exploitable when an administrator runs the CLI command 'request system software add validate-on-host' to validate packages. A locally authenticated attacker with CLI access ca...

CVE-2021-0218 Junos OS: Command injection vulnerability in license-check daemon

A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may allow a locally authenticated attacker with low privileges to execute commands with root privilege. license-check is a daemon used to manage licenses in Junos OS. To update licenses, a user execute...

CVE-2021-0218

CVE-2021-0218 affects Juniper Networks Junos OS license-check daemon. The vulnerability is a command injection that may allow a locally authenticated attacker with low privileges to run commands as root via the CLI command 'request system license update'. Affected Junos OS versions include 17.3 b...

CVE-2021-0217

This CVE (CVE-2021-0217) affects Juniper Networks Junos OS on EX Series and QFX Series switches with DHCP local/relay server enabled. A memory exhaustion issue in processing certain DHCP packets can exhaust DMA memory, causing a DoS and potential fxpc process crash or traffic forwarding disruptio...