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01 Record

CVE-2020-1649

Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of small fragments requiring reassembly

HighPUBLISHEDCNA: juniper
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of small fragments requiring reassembly

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
1.07% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 64.8% of scored records. A rank, not a probability.
NVD base score
7.5 (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:U/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
2020-07-17 18:40Z6 YR AGO
Last updated
2024-09-16 20:47Z2 YR AGO
Reserved
2019-11-04
Assigning CNA
juniper
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
No CWE assigned
Data version
5.1
Document digest
1ce7536e103a5c4c7a4329d274d7971e20ce4c22d0c7eced88088d374c2a1342

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS17.2 to < 17.2R3-S4, 17.3 to < 17.3R3-S8, 17.4 to < 17.4R2-S9, 17.4R3-S1, 18.1 to < 18.1R3-S10, 18.2 to < 18.2R2-S6, 18.2R3-S3, 18.2X75 to < 18.2X75-D34, 18.2X75-D41, 18.2X75-D53, 18.2X75-D65, 18.2X75-D430, 18.3 to < 18.3R1-S7, 18.3R2-S4, 18.3R3-S2, 18.4 to < 18.4R1-S6, 18.4R2-S4, 18.4R3, 19.1 to < 19.1R1-S4, 19.1R2-S1, 19.1R3, 19.2 to < 19.2R1-S3, 19.2R2, 19.3 to < 19.3R2-S2, 19.3R3MX Series

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: Junos OS 17.2R3-S4, 17.3R3-S8, 17.4R2-S9, 17.4R3-S1, 18.1R3-S10, 18.2R2-S6, 18.2R3-S3, 18.2X75-D34, 18.2X75-D41, 18.2X75-D53, 18.2X75-D65, 18.2X75-D430, 18.3R1-S7, 18.3R2-S4, 18.3R3-S2, 18.4R1-S6, 18.4R2-S4, 18.4R3, 19.1R1-S4, 19.1R2-S1, 19.1R3, 19.2R1-S3, 19.2R2, 19.3R2-S2, 19.3R3, 19.4R1, 19.4R2, 20.1R1, and all subsequent releases.