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Junos OS — Vulnerabilities & Security Advisories 678

All 678 CVE vulnerabilities found in Junos OS, with AI-generated Chinese analysis, references, and POCs.

This page aggregates vulnerability data for Junos OS, a network operating system developed by Juniper Networks. It collects security flaws across multiple weakness types, covering advisories issued from 2010 through the most recent updates. Readers can use this resource to track the vendor's published advisories, understand specific weakness classes like memory corruption or improper input validation, and review the product's historical vulnerability trends without needing to search individual databases.

Vendor: Juniper Networks

CVE ID Title CVSS Severity Published
CVE-2021-0238 Junos OS: MX Series: Executing CLI command repetitively may cause the system to run out of disk space CWE-400 5.5 Medium 2021-04-22
CVE-2021-0237 Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration 6.5 Medium 2021-04-22
CVE-2021-0235 Junos OS: SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, vSRX Series: In a multi-tenant environment, a tenant host administrator may configure logical firewall isolation affecting other tenant networks CWE-276 7.3 High 2021-04-22
CVE-2021-0236 Junos OS: A specific BGP VPNv6 flowspec message causes routing protocol daemon (rpd) process to crash with a core. CWE-754 6.5 Medium 2021-04-22
CVE-2021-0234 Junos OS: QFX5100-96S: DDoS protection does not work as expected. 5.8 Medium 2021-04-22
CVE-2021-0233 Junos OS: ACX500 Series, ACX4000 Series: Denial of Service due to FFEB crash while processing high rate of specific packets. CWE-794 7.5 High 2021-04-22
CVE-2021-0231 Junos OS: SRX, vSRX Series: J-Web Path traversal vulnerability in SRX and vSRX Series leads to information disclosure. CWE-22 6.5 Medium 2021-04-22
CVE-2021-0229 Junos OS: Receipt of specific packets could lead to Denial of Service in MQTT Server CWE-400 5.3 Medium 2021-04-22
CVE-2021-0230 Junos OS: SRX Series: Memory leak when querying Aggregated Ethernet (AE) interface statistics CWE-400 7.5 High 2021-04-22
CVE-2021-0228 Junos OS: MX Series: DDoS LACP violation upon receipt of specific layer 2 frames in EVPN-VXLAN deployment CWE-754 6.5 Medium 2021-04-22
CVE-2021-0227 Junos OS: SRX Series: Denial of Service in J-Web upon receipt of crafted HTTP packets CWE-119 7.5 High 2021-04-22
CVE-2021-0224 Junos OS: ANCPD core when hitting maximum-discovery-table-entries limit CWE-770 6.5 Medium 2021-04-22
CVE-2021-0214 Junos OS: Denial of Service in ppmd upon receipt of malformed packet CWE-20 6.5 Medium 2021-04-22
CVE-2021-0216 Junos OS: ACX5448, ACX710: BFD sessions might flap due to high rate of transit ARP packets 6.5 Medium 2021-04-22
CVE-2021-0222 Junos OS: Upon receipt of certain protocol packets with invalid payloads a self-propagating Denial of Service may occur. 7.4 High 2021-01-15
CVE-2021-0223 Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries CWE-250 7.8 High 2021-01-15
CVE-2021-0221 Junos OS: QFX Series: Traffic loop Denial of Service (DoS) upon receipt of specific IP multicast traffic CWE-703 6.5 Medium 2021-01-15
CVE-2021-0219 Junos OS: Command injection vulnerability in 'request system software' CLI command CWE-78 6.7 Medium 2021-01-15
CVE-2021-0218 Junos OS: Command injection vulnerability in license-check daemon CWE-78 7.8 High 2021-01-15
CVE-2021-0215 Junos OS: EX Series, QFX Series, SRX Branch Series, MX Series: Memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps CWE-400 6.5 Medium 2021-01-15
CVE-2021-0217 Junos OS: EX Series and QFX Series: Memory leak issue processing specific DHCP packets CWE-119 7.4 High 2021-01-15
CVE-2021-0211 Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted. 10.0 Critical 2021-01-15
CVE-2021-0210 Junos OS: Privilege escalation in J-Web due to arbitrary command and code execution via information disclosure from another users active session 6.8 Medium 2021-01-15
CVE-2021-0207 NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series: Certain genuine traffic received by the Junos OS device will be discarded instead of forwarded. CWE-436 7.5 High 2021-01-15
CVE-2021-0208 Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet. CWE-20 8.8 High 2021-01-15
CVE-2021-0205 Junos OS: MX Series: Dynamic filter fails to match IPv6 prefix CWE-284 5.8 Medium 2021-01-15
CVE-2021-0206 Junos OS: NFX Series, SRX Series: PFE may crash upon receipt of specific packet when SSL Proxy is configured. CWE-476 7.5 High 2021-01-15
CVE-2021-0204 Junos OS: dexp Local Privilege Escalation vulnerabilities in SUID binaries CWE-250 7.8 High 2021-01-15
CVE-2021-0202 Junos OS: MX Series, EX9200 Series: Trio-based MPC memory leak when Integrated Routing and Bridging (IRB) interface is mapped to a VPLS instance or a Bridge-Domain CWE-400 7.5 High 2021-01-15
CVE-2021-0203 Junos OS: EX and QFX5K Series: Storm Control does not work as expected when Redundant Trunk Group is configured CWE-794 8.6 High 2021-01-15

All 678 known CVE vulnerabilities affecting Junos OS with full Chinese analysis, references, and POCs where available.