synced 2 MIN AGO
01 Record

CVE-2021-0237

Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration

MediumPUBLISHEDCNA: juniper
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration

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
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 31.8% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/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
2021-04-22 19:37Z5 YR AGO
Last updated
2024-09-17 02:56Z2 YR AGO
Reserved
2020-10-27
Assigning CNA
juniper
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
No CWE assigned
Data version
5.1
Document digest
7423ffd136bf6a0160738703f73c7d6d47732ec4a457d1184fc3113784ebbe99

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS15.1 to < 15.1R7-S9, 17.3 to < 17.3R3-S11, 17.4 to < 17.4R2-S13, 17.4R3-S4, 17.4R3-S5, 18.2 to < 18.2R3-S8, 18.3 to < 18.3R3-S4, 18.4 to < 18.4R2-S7, 18.4R3-S6, 19.1 to < 19.1R3-S4, 19.2 to < 19.2R1-S6, 19.2R3-S1, 19.3 to < 19.3R3-S1, 19.4 to < 19.4R2-S4, 19.4R3-S1, 20.1 to < 20.1R2, 20.2 to < 20.2R2, 20.2R3, 20.3 to < 20.3R1-S2, 20.3R2EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: 15.1R7-S9, 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 17.4R3-S5, 18.3R3-S4, 18.4R2-S7, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S1, 19.3R3-S1, 19.4R2-S4, 19.4R3-S1, 20.1R2, 20.2R2, 20.2R3, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases.