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Juniper Networks — Vulnerabilities & Security Advisories 893

Browse all 893 CVE security advisories affecting Juniper Networks. AI-powered Chinese analysis, POCs, and references for each vulnerability.

Juniper Networks operates as a global provider of networking hardware, software, and services, primarily focusing on enterprise and service provider infrastructure. With 893 recorded Common Vulnerabilities and Exposures, the company’s attack surface reflects the complexity of its extensive product portfolio. Historically, vulnerabilities in its systems have frequently involved remote code execution, cross-site scripting, and privilege escalation flaws, often stemming from input validation errors or improper access controls in management interfaces. Notable incidents include critical flaws in ScreenOS and Junos OS that allowed attackers to bypass authentication or execute arbitrary commands, highlighting risks in legacy and core routing platforms. These issues underscore the necessity for rigorous patch management and secure configuration practices. As a foundational element of global internet infrastructure, the security posture of Juniper Networks directly impacts the stability and integrity of connected networks worldwide, necessitating continuous monitoring and proactive defense strategies.

Found 658 results / 893Clear Filters
CVE IDTitleCVSSSeverityPublished
CVE-2021-0283 Junos OS: Upon receipt of specific sequences of genuine packets destined to the device the kernel will crash and restart (vmcore) — Junos OSCWE-120 7.5 High2021-07-15
CVE-2021-0282 Junos OS: RPD crash while processing a specific BGP UPDATE when Multipath or add-path features are enabled — Junos OSCWE-754 7.5 High2021-07-15
CVE-2021-0281 Junos OS and Junos OS Evolved: Specific packets can trigger rpd crash when BGP Origin Validation is configured with RPKI — Junos OSCWE-754 5.9 Medium2021-07-15
CVE-2021-0280 Junos OS: PTX Series, QFX10K Series: Upon receipt of specific packets BFD sessions might flap due to DDoS policer implementation in Packet Forwarding Engine — Junos OSCWE-665 7.5 High2021-07-15
CVE-2021-0278 Junos OS: J-Web allows a locally authenticated attacker to escalate their privileges to root. — Junos OSCWE-20 8.8 High2021-07-15
CVE-2021-0277 Junos OS and Junos OS Evolved: LLDP Out-of-Bounds Read vulnerability in l2cpd — Junos OSCWE-125 8.8 High2021-07-15
CVE-2021-0275 Junos OS: J-Web: Cross-site scripting attack allows an attacker to gain control of another users session. — Junos OSCWE-79 8.8 High2021-04-22
CVE-2021-0272 Junos OS: QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: In EVPN-VXLAN scenarios receipt of specific genuine packets by an adjacent attacker will cause a kernel memory leak in FPC. — Junos OSCWE-401 6.5 Medium2021-04-22
CVE-2021-0273 Junos OS and Junos OS Evolved: Trio Chipset: Denial of Service due to packet destined to device's interfaces. — Junos OSCWE-835 5.3 Medium2021-04-22
CVE-2021-0271 Junos OS: EX2200-C Series, EX3200 Series, EX3300 Series, EX4200 Series, EX4500 Series, EX4550 Series, EX6210 Series, EX8208 Series, EX8216 Series: Receipt of a crafted ARP packet by an adjacent attacker will cause the sfid process to core. — Junos OS 6.5 Medium2021-04-22
CVE-2021-0269 Junos OS: J-Web can be compromised through reflected client-side HTTP parameter pollution attacks. — Junos OSCWE-233 8.8 High2021-04-22
CVE-2021-0270 Junos OS: PTX Series, QFX10K Series: A PTX/QFX FPC may restart unexpectedly with the "inline-Jflow" feature enabled on a large-scale deployment — Junos OSCWE-362 7.5 High2021-04-22
CVE-2021-0268 Junos OS: J-Web has an Improper Neutralization of CRLF Sequences in its HTTP Headers which allows an attacker to carry out multiple types of attacks. — Junos OSCWE-113 8.8 High2021-04-22
CVE-2021-0266 cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the device through device management services. — Junos OSCWE-321 8.1 High2021-04-22
CVE-2021-0267 Junos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core. — Junos OSCWE-20 7.4 High2021-04-22
CVE-2021-0263 Junos OS: PTX Series: Denial of Service in packet processing due to heavy route churn when J-Flow sampling is enabled — Junos OSCWE-19 5.9 Medium2021-04-22
CVE-2021-0264 Junos OS and Junos OS Evolved: MX Series with MPC10/MPC11, PTX10003, PTX10008: Line card may crash and restart when traffic is hitting a firewall filter having a term with syslog action configured — Junos OSCWE-703 5.9 Medium2021-04-22
CVE-2021-0262 Junos OS: QFX10002-60C: Use after free vulnerability found during static code analysis — Junos OSCWE-416 6.5 Medium2021-04-22
CVE-2021-0260 Junos OS: SNMP fails to properly perform authorization checks on incoming received SNMP requests. — Junos OSCWE-285 7.3 High2021-04-22
CVE-2021-0261 Junos OS: Denial of Service vulnerability in J-Web and web based (HTTP/HTTPS) services caused by a high number of specific requests — Junos OSCWE-125 7.5 High2021-04-22
CVE-2021-0259 Junos OS and Junos OS Evolved: QFX5K Series: Underlay network traffic might not be processed upon receipt of high rate of specific genuine overlay packets in VXLAN scenario — Junos OSCWE-755 7.4 High2021-04-22
CVE-2021-0258 Junos OS: Kernel panic upon receipt of specific TCPv6 packet on management interface — Junos OSCWE-362 5.9 Medium2021-04-22
CVE-2021-0256 Junos OS: mosquitto Local Privilege Escalation vulnerability in SUID binaries — Junos OSCWE-250 5.5 Medium2021-04-22
CVE-2021-0257 Junos OS: MX Series, EX9200 Series: Trio-based MPCs memory leak in VPLS with integrated routing and bridging (IRB) interface — Junos OSCWE-400 6.5 Medium2021-04-22
CVE-2021-0255 Junos OS: ethtraceroute Local Privilege Escalation vulnerability in SUID binaries — Junos OSCWE-250 5.5 Medium2021-04-22
CVE-2021-0253 Junos OS: NFX Series: Local Command Execution Vulnerability in JDMD Leads to Privilege Escalation — Junos OSCWE-77 7.8 High2021-04-22
CVE-2021-0254 Junos OS: Remote code execution vulnerability in overlayd service — Junos OSCWE-131 9.8 Critical2021-04-22
CVE-2021-0252 Junos OS: NFX Series: Local Code Execution Vulnerability in JDMD Leads to Privilege Escalation — Junos OSCWE-77 7.8 High2021-04-22
CVE-2021-0250 Junos OS and Junos OS Evolved: An attacker sending a specific crafted BGP update message will crash RPD — Junos OS 7.5 High2021-04-22
CVE-2021-0251 Junos OS: MX Series with MS-PIC, MS-SPC3, MS-MIC or MS-MPC: The BRAS Subscriber Services service activation portal is vulnerable to a Denial of Service (DoS) via malformed HTTP packets — Junos OS 8.6 High2021-04-22

This page lists every published CVE security advisory associated with Juniper Networks. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.