A vulnerability in the BGP FlowSpec implementation may cause a Juniper Networks Junos OS device to terminate an established BGP session upon receiving a specific BGP FlowSpec advertisement. The BGP NOTIFICATION message that terminates an established BGP session is sent toward the peer device that originally sent the specific BGP FlowSpec advertisement. This specific BGP FlowSpec advertisement received from a BGP peer might get propagated from a Junos OS device running the fixed release to another device that is vulnerable causing BGP session termination downstream. This issue affects IPv4 and IPv6 BGP FlowSpec deployment. This issue affects Juniper Networks Junos OS: 12.3; 12.3X48 on SRX Series; 14.1X53 on EX and QFX Series; 15.1 versions prior to 15.1R7-S5; 15.1F versions prior to 15.1F6-S13; 15.1X49 versions prior to 15.1X49-D180 on SRX Series; 15.1X53 versions prior to 15.1X53-D238 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D497 on NFX Series; 15.1X53 versions prior to 15.1X53-D592 on EX2300/EX3400; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S12, 17.1R3; 17.2 versions prior to 17.2R2-S7, 17.2R3; 17.2X75 versions prior to 17.2X75-D102, 17.2X75-D110, 17.2X75-D44; 17.3 versions prior to 17.3R2-S5, 17.3R3-S5; 17.4 versions prior to 17.4R1-S8, 17.4R2; 18.1 versions prior to 18.1R2-S4, 18.1R3; 18.2X75 versions prior to 18.2X75-D20.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.6, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 46 products from juniper, from juniper, from juniper and 43 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-04-08T20:15:13.043
2026-06-17T03:01:52.853
Modified
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2x75 | Yes |
| Operating System | juniper | junos | 17.2x75 | Yes |
| Operating System | juniper | junos | 17.2x75 | Yes |
| Operating System | juniper | junos | 17.2x75 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.2x75 | Yes |
| Operating System | juniper | junos | 18.2x75-d10 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Hardware | juniper | srx100 | - | No |
| Hardware | juniper | srx110 | - | No |
| Hardware | juniper | srx1400 | - | No |
| Hardware | juniper | srx1500 | - | No |
| Hardware | juniper | srx210 | - | No |
| Hardware | juniper | srx220 | - | No |
| Hardware | juniper | srx240 | - | No |
| Hardware | juniper | srx300 | - | No |
| Hardware | juniper | srx320 | - | No |
| Hardware | juniper | srx340 | - | No |
| Hardware | juniper | srx3400 | - | No |
| Hardware | juniper | srx345 | - | No |
| Hardware | juniper | srx3600 | - | No |
| Hardware | juniper | srx4100 | - | No |
| Hardware | juniper | srx4200 | - | No |
| Hardware | juniper | srx4600 | - | No |
| Hardware | juniper | srx5400 | - | No |
| Hardware | juniper | srx550 | - | No |
| Hardware | juniper | srx5600 | - | No |
| Hardware | juniper | srx5800 | - | No |
| Hardware | juniper | srx650 | - | No |
| Operating System | juniper | junos | 14.1x53 | Yes |
| Hardware | juniper | ex2300 | - | No |
| Hardware | juniper | ex2300-c | - | No |
| Hardware | juniper | ex3400 | - | No |
| Hardware | juniper | ex4300 | - | No |
| Hardware | juniper | ex4600 | - | No |
| Hardware | juniper | ex4650 | - | No |
| Hardware | juniper | ex9200 | - | No |
| Hardware | juniper | ex9250 | - | No |
| Hardware | juniper | qfx10002 | - | No |
| Hardware | juniper | qfx10008 | - | No |
| Hardware | juniper | qfx10016 | - | No |
| Hardware | juniper | qfx3000-g | - | No |
| Hardware | juniper | qfx3000-m | - | No |
| Hardware | juniper | qfx3008-i | - | No |
| Hardware | juniper | qfx3100 | - | No |
| Hardware | juniper | qfx3500 | - | No |
| Hardware | juniper | qfx3600 | - | No |
| Hardware | juniper | qfx3600-i | - | No |
| Hardware | juniper | qfx5100 | - | No |
| Hardware | juniper | qfx5110 | - | No |
| Hardware | juniper | qfx5200 | - | No |
| Hardware | juniper | qfx5210 | - | No |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Hardware | juniper | qfx5110 | - | No |
| Hardware | juniper | qfx5200 | - | No |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53-d50 | Yes |
| Operating System | juniper | junos | 15.1x53-d51 | Yes |
| Operating System | juniper | junos | 15.1x53-d52 | Yes |
| Operating System | juniper | junos | 15.1x53-d55 | Yes |
| Operating System | juniper | junos | 15.1x53-d57 | Yes |
| Operating System | juniper | junos | 15.1x53-d58 | Yes |
| Operating System | juniper | junos | 15.1x53-d59 | Yes |
| Hardware | juniper | nfx150 | - | No |
| Hardware | juniper | nfx250 | - | No |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53-d50 | Yes |
| Operating System | juniper | junos | 15.1x53-d51 | Yes |
| Operating System | juniper | junos | 15.1x53-d52 | Yes |
| Operating System | juniper | junos | 15.1x53-d55 | Yes |
| Operating System | juniper | junos | 15.1x53-d57 | Yes |
| Operating System | juniper | junos | 15.1x53-d58 | Yes |
| Operating System | juniper | junos | 15.1x53-d59 | Yes |
| Hardware | juniper | ex2300 | - | No |
| Hardware | juniper | ex3400 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.