What is CVE-2020-1651?

CVE-2020-1651 is a medium-severity vulnerability in Juniper Junos, classified under CWE-19. CVSS score: 6.5/10. Published 2020-07-17.

How severe is CVE-2020-1651?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos

CVE-2020-1651

On Juniper Networks MX series, receipt of a stream of specific Layer 2 frames may cause a memory leak resulting in the packet forwarding engine (PFE) on the line card to crash and restart, causing traffic interruption. By continuously sending this stream of specific layer 2 frame, an attacker connected to the same broadcast domain can repeatedly crash the PFE, causing a prolonged Denial of Service (DoS). This issue affects Juniper Networks Junos OS on MX Series: 17.2 versions prior to 17.2R3-S4; 17.2X75 versions prior to 17.2X75-D105.19; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R1-S3, 17.4R2; 18.1 versions prior to 18.1R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.2R1.

EPSS: 0.005 (37.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 17.2, 17.2x75, 17.3
Juniper Mx10
Juniper Mx10000
Juniper Mx10003
Juniper Mx104
Juniper Mx150
Juniper Mx2008
Juniper Mx2010
Juniper Mx2020
Juniper Mx204

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-1651?: CVE-2020-1651 is a medium-severity vulnerability in Juniper Junos, classified under CWE-19. CVSS score: 6.5/10. Published 2020-07-17.
How severe is CVE-2020-1651?: Medium severity. CVSS v3 base score is 6.5 out of 10.