01 Record

CVE-2020-1603

Junos OS: Improper handling of specific IPv6 packets sent by clients eventually kernel crash (vmcore) the device.

HighPUBLISHEDCNA: juniper

CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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02 Description

Junos OS: Improper handling of specific IPv6 packets sent by clients eventually kernel crash (vmcore) the device.

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 1.40% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 72.3% of scored records. A rank, not a probability.
NVD base score: 8.6 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2020-01-15 08:40Z6 YR AGO

Last updated

2024-09-16 22:36Z2 YR AGO

Reserved

2019-11-04

Assigning CNA

juniper

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weaknesses

CWE-710Improper Adherence to Coding StandardsPillar
CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.1

Document digest

0de7ae6c30eab48553104cc618d22593789efb007f59453f3a83e8b2af55f7d2

05 Affected products

VendorProductVersionsPlatforms

Juniper NetworksJunos OS16.1 to < 16.1R7-S6, 16.2 to < 16.2R2-S11, 17.1 to < 17.1R2-S11, 17.1R3-S1, 17.2 to < 17.2R1-S9, 17.2R2-S8, 17.2R3-S3, 17.3 to < 17.3R3-S6, 17.4 to < 17.4R2-S9, 17.4R3, 18.1 to < 18.1R3-S7, 18.2 to < 18.2R3-S2, 18.2X75 to < 18.2X75-D50, 18.2X75-D410, 18.3 to < 18.3R1-S6, 18.3R2-S2, 18.3R3, 18.4 to < 18.4R1-S6, 18.4R2-S2, 18.4R3, 19.1 to < 19.1R1-S3, 19.1R2, 19.2 to < 19.2R1-S2, 19.2R2—

06 References

kb.juniper.nethttps://kb.juniper.net/JSA10982x_refsource_CONFIRM
prsearch.juniper.nethttps://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1443576x_refsource_MISC

07 Remediation

The following software releases have been updated to resolve this specific issue: 16.1R7-S6, 16.2R2-S11, 17.1R2-S11, 17.1R3-S1, 17.2R1-S9, 17.2R2-S8, 17.2R3-S3, 17.3R3-S6, 17.4R2-S9, 17.4R3, 18.1R3-S7, 18.2R3-S2, 18.2X75-D50, 18.2X75-D410, 18.3R1-S6, 18.3R2-S2, 18.3R3, 18.4R1-S6, 18.4R2-S2, 18.4R3, 19.1R1-S3, 19.1R2, 19.2R1-S2, 19.2R2, 19.3R1, and all subsequent releases.