CVE detail

CVE-2020-1680 — CVE-2020-1680

Published 2020-10-16 · Modified 2026-06-17 · Vendor juniper · Product junos · Source nvd
MEDIUM
severity
CVSS-derived band
5.3
CVSS v3
0–10 scale
0.0131
EPSS probability
exploitation probability, 30d
68.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

On Juniper Networks MX Series with MS-MIC or MS-MPC card configured with NAT64 configuration, receipt of a malformed IPv6 packet may crash the MS-PIC component on MS-MIC or MS-MPC. This issue occurs when a multiservice card is translating the malformed IPv6 packet to IPv4 packet. An unauthenticated attacker can continuously send crafted IPv6 packets through the device causing repetitive MS-PIC process crashes, resulting in an extended Denial of Service condition. This issue affects Juniper Networks Junos OS on MX Series: 15.1 versions prior to 15.1R7-S7; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S11, 17.4R3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior

Remediation

vendor remediation guidance

The following software releases have been updated to resolve this specific issue: Junos OS 15.1R7-S7, 15.1X53-D593, 16.1R7-S8, 17.2R3-S4, 17.3R3-S6, 17.4R2-S11, 17.4R3, 18.1R3-S11, 18.2R3-S6, 18.2X75-D41, 18.2X75-D430, 18.2X75-D53, 18.2X75-D65, 18.3R2-S4, 18.3R3, 18.4R2-S5, 18.4R3, 19.1R2, 19.2R1-S5, 19.2R2, 19.3R2, 19.4R1, and all subsequent releases.

workarounds

There are no viable workarounds for this issue.

ProductVulnerable rangeFixed versionAdvisory
Juniper Networks Junos OS>=15.1<15.1R7-S715.1R7-S7advisory ↗
Juniper Networks Junos OS>=15.1X53<15.1X53-D59315.1X53-D593advisory ↗
Juniper Networks Junos OS>=16.1<16.1R7-S816.1R7-S8advisory ↗
Juniper Networks Junos OS>=17.2<17.2R3-S417.2R3-S4advisory ↗
Juniper Networks Junos OS>=17.3<17.3R3-S617.3R3-S6advisory ↗
Juniper Networks Junos OS>=17.4<17.4R2-S11, 17.4R317.4R2-S11, 17.4R3advisory ↗
Juniper Networks Junos OS>=18.1<18.1R3-S1118.1R3-S11advisory ↗
Juniper Networks Junos OS>=18.2<18.2R3-S618.2R3-S6advisory ↗
Juniper Networks Junos OS>=18.2X75<18.2X75-D41, 18.2X75-D430, 18.2X75-D53, 18.2X75-D6518.2X75-D41, 18.2X75-D430, 18.2X75-D53, 18.2X75-D65advisory ↗
Juniper Networks Junos OS>=18.3<18.3R2-S4, 18.3R318.3R2-S4, 18.3R3advisory ↗
Juniper Networks Junos OS>=18.4<18.4R2-S5, 18.4R318.4R2-S5, 18.4R3advisory ↗
Juniper Networks Junos OS>=19.1<19.1R219.1R2advisory ↗
Juniper Networks Junos OS>=19.2<19.2R1-S5, 19.2R219.2R1-S5, 19.2R2advisory ↗
Juniper Networks Junos OS>=19.3<19.3R219.3R2advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.