CVE-2020-1613

mediumpriority · track · 30EPSS 0.013 · 71 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.32% (71st) EPSS

CVSS 5 · medium

Is it mine?

62 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–8.6

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · sirt@juniper.net USexploitability 3.9 · impact 4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-710USCWE-710US

affected products (62)

Products and version ranges known to be affected.

Juniper Networks Junos OS≤ 12.3X48enisa_euvdEU
Juniper Networks Junos OS≤ 14.1X53enisa_euvdEU
Juniper Networks Junos OS≤ 12.3enisa_euvdEU
Juniper Networks Junos OS15.1 → 15.1R7-S5enisa_euvdEU
Juniper Networks Junos OS15.1F → 15.1F6-S13enisa_euvdEU
Juniper Networks Junos OS15.1X49 → 15.1X49-D180enisa_euvdEU
Juniper Networks Junos OS15.1X53 → 15.1X53-D238enisa_euvdEU
Juniper Networks Junos OS15.1X53 → 15.1X53-D497enisa_euvdEU
Juniper Networks Junos OS15.1X53 → 15.1X53-D592enisa_euvdEU
Juniper Networks Junos OS16.1 → 16.1R7-S7enisa_euvdEU
Juniper Networks Junos OS17.1 → 17.1R2-S12, 17.1R3enisa_euvdEU
Juniper Networks Junos OS17.2 → 17.2R2-S7, 17.2R3enisa_euvdEU
Juniper Networks Junos OS17.2X75 → 17.2X75-D102, 17.2X75-D110, 17.2X75-D44enisa_euvdEU
Juniper Networks Junos OS17.3 → 17.3R2-S5, 17.3R3-S5enisa_euvdEU
Juniper Networks Junos OS17.4 → 17.4R1-S8, 17.4R2enisa_euvdEU
Juniper Networks Junos OS18.1 → 18.1R2-S4, 18.1R3enisa_euvdEU
Juniper Networks Junos OS18.2X75 → 18.2X75-D20enisa_euvdEU
Juniper Networks Inc. JunOS≤ 17.3R3-S5fstec_bduRU
Juniper Networks Inc. JunOS≤ 15.1R7-S5fstec_bduRU
Juniper Networks Inc. JunOS≤ 15.1F6-S13fstec_bduRU

showing 20 of 62

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

published 2020-04-08modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

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