Vulnerabilities > Juniper > Junos > Critical

DATE CVE VULNERABILITY TITLE RISK
2024-01-12 CVE-2024-21591 Out-of-bounds Write vulnerability in Juniper Junos
An Out-of-bounds Write vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS), or Remote Code Execution (RCE) and obtain root privileges on the device. This issue is caused by use of an insecure function allowing an attacker to overwrite arbitrary memory. This issue affects Juniper Networks Junos OS SRX Series and EX Series: * Junos OS versions earlier than 20.4R3-S9; * Junos OS 21.2 versions earlier than 21.2R3-S7; * Junos OS 21.3 versions earlier than 21.3R3-S5; * Junos OS 21.4 versions earlier than 21.4R3-S5; * Junos OS 22.1 versions earlier than 22.1R3-S4; * Junos OS 22.2 versions earlier than 22.2R3-S3; * Junos OS 22.3 versions earlier than 22.3R3-S2; * Junos OS 22.4 versions earlier than 22.4R2-S2, 22.4R3.
network
low complexity
juniper CWE-787
critical
9.8
2023-08-17 CVE-2023-36845 Unspecified vulnerability in Juniper Junos
A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series and SRX Series allows an unauthenticated, network-based attacker to remotely execute code. Using a crafted request which sets the variable PHPRC an attacker is able to modify the PHP execution environment allowing the injection und execution of code. This issue affects Juniper Networks Junos OS on EX Series and SRX Series: * All versions prior to 20.4R3-S9; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S7; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3-S1; * 22.4 versions prior to 22.4R2-S1, 22.4R3; * 23.2 versions prior to 23.2R1-S1, 23.2R2.
network
low complexity
juniper
critical
9.8
2023-04-17 CVE-2023-28962 Unrestricted Upload of File with Dangerous Type vulnerability in Juniper Junos
An Improper Authentication vulnerability in upload-file.php, used by the J-Web component of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to upload arbitrary files to temporary folders on the device.
network
low complexity
juniper CWE-434
critical
9.8
2022-10-18 CVE-2022-22241 Deserialization of Untrusted Data vulnerability in Juniper Junos
An Improper Input Validation vulnerability in the J-Web component of Juniper Networks Junos OS may allow an unauthenticated attacker to access data without proper authorization.
network
low complexity
juniper CWE-502
critical
9.8
2022-01-19 CVE-2022-22167 Incorrect Authorization vulnerability in Juniper Junos
A traffic classification vulnerability in Juniper Networks Junos OS on the SRX Series Services Gateways may allow an attacker to bypass Juniper Deep Packet Inspection (JDPI) rules and access unauthorized networks or resources, when 'no-syn-check' is enabled on the device.
network
low complexity
juniper CWE-863
critical
9.8
2022-01-19 CVE-2022-22157 Incorrect Authorization vulnerability in Juniper Junos
A traffic classification vulnerability in Juniper Networks Junos OS on the SRX Series Services Gateways may allow an attacker to bypass Juniper Deep Packet Inspection (JDPI) rules and access unauthorized networks or resources, when 'no-syn-check' is enabled on the device.
network
low complexity
juniper CWE-863
critical
9.3
2021-10-19 CVE-2021-31384 Missing Authorization vulnerability in Juniper Junos 20.4/21.1
Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can successfully do so from any device interface regardless of the web-management configuration and filter rules which may otherwise protect access to J-Web.
network
low complexity
juniper CWE-862
critical
10.0
2021-10-19 CVE-2021-31382 Race Condition vulnerability in Juniper Junos
On PTX1000 System, PTX10002-60C System, after upgrading to an affected release, a Race Condition vulnerability between the chassis daemon (chassisd) and firewall process (dfwd) of Juniper Networks Junos OS, may update the device's interfaces with incorrect firewall filters.
network
high complexity
juniper CWE-362
critical
9.0
2021-04-22 CVE-2021-0248 Use of Hard-coded Credentials vulnerability in Juniper Junos
This issue is not applicable to NFX NextGen Software.
network
low complexity
juniper CWE-798
critical
10.0
2021-04-22 CVE-2021-0249 Classic Buffer Overflow vulnerability in Juniper Junos
On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS may allow an attacker to arbitrarily execute code or commands on the target to take over or otherwise impact the device by sending crafted packets to or through the device.
network
low complexity
juniper CWE-120
critical
9.8