CVE-2020-1615
highpriority · track · 40OT risk · elevatedEPSS 0.018 · 78 %ileEURUUSEPSS · scored 2026-10-27
The factory configuration for vMX installations, as shipped, includes default credentials for the root account. Without proper modification of these default credentials by the administrator, an attacker could exploit these credentials and access the vMX instance without authorization. This issue affects Juniper Networks Junos OS: 17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on vMX; 17.2 versions prior to 17.2R3-S3 on vMX; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on vMX; 17.4 versions prior to 17.4R2-S9, 17.4R3 on vMX; 18.1 versions prior to 18.1R3-S9 on vMX; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3 on vMX; 18.2X75 versions prior to 18.2X75-D420, 18.2X75-D60 on vMX; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1 on vMX; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on vMX; 19.1 versions prior to 19.1R1-S4, 19.1R2, 19.1R3 on vMX; 19.2 versions prior to 19.2R1-S3, 19.2R2 on vMX; 19.3 versions prior to 19.3R1-S1, 19.3R2 on vMX.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (50)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://kb.juniper.net/cnnvd
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10998&cat=SIRT_1&actp=LISTPatchcnnvd
- https://kb.juniper.net/JSA10998cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-1615cnnvd
- https://vigilance.fr/vulnerability/Junos-OS-vMX-privilege-escalation-via-Default-Credentials-31965cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.1271/cnnvd
- https://kb.juniper.net/JSA10998enisa_euvd
- https://kb.juniper.net/JSA10998Vendor Advisorynvd
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