Vulnerability Details CVE-2021-0211
An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-EVO.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 59.0%
CVSS Severity
CVSS v3 Score 10.0
CVSS v2 Score 6.4
Products affected by CVE-2021-0211
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cpe:2.3:h:juniper:ex2200-c:-
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cpe:2.3:h:juniper:ex2200-vc:-
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cpe:2.3:h:juniper:ex2200:-
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cpe:2.3:h:juniper:ex2300-c:-
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cpe:2.3:h:juniper:ex2300:-
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cpe:2.3:h:juniper:ex2300m:-
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cpe:2.3:h:juniper:ex3200:-
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cpe:2.3:h:juniper:ex3300-vc:-
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cpe:2.3:h:juniper:ex3300:-
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cpe:2.3:h:juniper:ex3400:-
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cpe:2.3:h:juniper:ex4200-vc:-
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cpe:2.3:h:juniper:ex4200:-
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cpe:2.3:h:juniper:ex4300-24p-s:-
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cpe:2.3:h:juniper:ex4300-24p:-
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cpe:2.3:h:juniper:ex4300-24t-s:-
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cpe:2.3:h:juniper:ex4300-24t:-
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cpe:2.3:h:juniper:ex4300-32f-dc:-
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cpe:2.3:h:juniper:ex4300-32f-s:-
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cpe:2.3:h:juniper:ex4300-32f:-
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cpe:2.3:h:juniper:ex4300-48mp-s:-
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cpe:2.3:h:juniper:ex4300-48mp:-
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cpe:2.3:h:juniper:ex4300-48p-s:-
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cpe:2.3:h:juniper:ex4300-48p:-
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cpe:2.3:h:juniper:ex4300-48t-afi:-
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cpe:2.3:h:juniper:ex4300-48t-dc-afi:-
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cpe:2.3:h:juniper:ex4300-48t-dc:-
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cpe:2.3:h:juniper:ex4300-48t-s:-
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cpe:2.3:h:juniper:ex4300-48t:-
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cpe:2.3:h:juniper:ex4300-48tafi:-
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cpe:2.3:h:juniper:ex4300-48tdc-afi:-
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cpe:2.3:h:juniper:ex4300-48tdc:-
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cpe:2.3:h:juniper:ex4300-mp:-
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cpe:2.3:h:juniper:ex4300-vc:-
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cpe:2.3:h:juniper:ex4300:-
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cpe:2.3:h:juniper:ex4300m:-
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cpe:2.3:h:juniper:ex4400:-
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cpe:2.3:h:juniper:ex4500-vc:-
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cpe:2.3:h:juniper:ex4500:-
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cpe:2.3:h:juniper:ex4550-vc:-
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cpe:2.3:h:juniper:ex4550/vc:-
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cpe:2.3:h:juniper:ex4550:-
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cpe:2.3:h:juniper:ex4600-vc:-
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cpe:2.3:h:juniper:ex4600:-
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cpe:2.3:h:juniper:ex4650:-
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cpe:2.3:h:juniper:ex6200:-
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cpe:2.3:h:juniper:ex6210:-
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cpe:2.3:h:juniper:ex8200-vc:-
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cpe:2.3:h:juniper:ex8200:-
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cpe:2.3:h:juniper:ex8208:-
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cpe:2.3:h:juniper:ex8216:-
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cpe:2.3:h:juniper:ex9200:-
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cpe:2.3:h:juniper:ex9204:-
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cpe:2.3:h:juniper:ex9208:-
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cpe:2.3:h:juniper:ex9214:-
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cpe:2.3:h:juniper:ex9250:-
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cpe:2.3:h:juniper:ex9251:-
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cpe:2.3:h:juniper:ex9253:-
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cpe:2.3:h:juniper:ex_rps:-
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cpe:2.3:h:juniper:srx100:-
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cpe:2.3:h:juniper:srx110:-
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cpe:2.3:h:juniper:srx1400:-
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cpe:2.3:h:juniper:srx1500:-
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cpe:2.3:h:juniper:srx210:-
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cpe:2.3:h:juniper:srx220:-
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cpe:2.3:h:juniper:srx240:-
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cpe:2.3:h:juniper:srx240h2:-
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cpe:2.3:h:juniper:srx300:-
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cpe:2.3:h:juniper:srx320:-
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cpe:2.3:h:juniper:srx3400:-
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cpe:2.3:h:juniper:srx340:-
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cpe:2.3:h:juniper:srx345:-
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cpe:2.3:h:juniper:srx3600:-
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cpe:2.3:h:juniper:srx380:-
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cpe:2.3:h:juniper:srx4000:-
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cpe:2.3:h:juniper:srx4100:-
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cpe:2.3:h:juniper:srx4200:-
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cpe:2.3:h:juniper:srx4600:-
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cpe:2.3:h:juniper:srx5000:-
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cpe:2.3:h:juniper:srx5400:-
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cpe:2.3:h:juniper:srx550:-
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cpe:2.3:h:juniper:srx550_hm:-
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cpe:2.3:h:juniper:srx550m:-
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cpe:2.3:h:juniper:srx5600:-
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cpe:2.3:h:juniper:srx5800:-
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cpe:2.3:h:juniper:srx650:-
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cpe:2.3:o:juniper:junos:15.1
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cpe:2.3:o:juniper:junos:15.1x49
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cpe:2.3:o:juniper:junos:15.1x49-d140
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cpe:2.3:o:juniper:junos:15.1x49-d150
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cpe:2.3:o:juniper:junos:15.1x49-d160
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cpe:2.3:o:juniper:junos:15.1x49-d30
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cpe:2.3:o:juniper:junos:15.1x49-d60
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cpe:2.3:o:juniper:junos:17.3
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cpe:2.3:o:juniper:junos:17.4
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cpe:2.3:o:juniper:junos:18.1
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cpe:2.3:o:juniper:junos:18.2
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cpe:2.3:o:juniper:junos:18.3
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cpe:2.3:o:juniper:junos:18.4
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cpe:2.3:o:juniper:junos:19.1
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cpe:2.3:o:juniper:junos:19.2
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cpe:2.3:o:juniper:junos:19.3
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cpe:2.3:o:juniper:junos:19.4
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cpe:2.3:o:juniper:junos:20.1
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cpe:2.3:o:juniper:junos:20.2
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cpe:2.3:o:juniper:junos:20.3
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cpe:2.3:o:juniper:junos_os_evolved:19.2
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cpe:2.3:o:juniper:junos_os_evolved:19.3
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cpe:2.3:o:juniper:junos_os_evolved:19.4
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cpe:2.3:o:juniper:junos_os_evolved:20.1
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cpe:2.3:o:juniper:junos_os_evolved:20.2
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cpe:2.3:o:juniper:junos_os_evolved:20.3