01 Record

CVE-2021-31382

Junos OS: PTX1000 System, PTX10002-60C System: After upgrading, configured firewall filters may be applied on incorrect interfaces

MediumPUBLISHEDCNA: juniper

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

View raw JSON

02 Description

Junos OS: PTX1000 System, PTX10002-60C System: After upgrading, configured firewall filters may be applied on incorrect interfaces

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: 0.60% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 48.6% of scored records. A rank, not a probability.
NVD base score: 9.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/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

2021-10-19 18:17Z5 YR AGO

Last updated

2024-09-17 01:05Z2 YR AGO

Reserved

2021-04-15

Assigning CNA

juniper

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

125662e32c8d3ee34229a9b9bf59fd681ed931bc6dbe0f781f6fbe90744b320b

05 Affected products

VendorProductVersionsPlatforms

Juniper NetworksJunos OS17.2R1 to < 17.2*, 17.3 to < 17.3R3-S12, 17.4 to < 17.4R3-S5, 18.1 to < 18.1R3-S13, 18.2 to < 18.2R3-S8, 18.3 to < 18.3R3-S5, 18.4 to < 18.4R1-S8, 18.4R2-S8, 18.4R3-S8, 19.1 to < 19.1R3-S5, 19.2 to < 19.2R3-S2, 19.3 to < 19.3R2-S6, 19.3R3-S3, 19.4 to < 19.4R2-S4, 19.4R3-S3, 20.1 to < 20.1R3, 20.2 to < 20.2R2-S3, 20.2R3, 20.3 to < 20.3R2-S1, 20.3R3, 20.4 to < 20.4R1-S1, 20.4R2, 18.4 to < 18.4R3-S9, 19.1R1 to < 19.1*, 19.4 to < 19.4R2-S5, 19.4R3-S5, 20.1 to < 20.1R3-S1, 20.2 to < 20.2R3-S2, 20.3 to < 20.3R3-S1, 20.4R1 to < 20.4*, 21.1 to < 21.1R2, 21.2R1 to < 21.2*, 21.3 to < 21.3R2PTX1000 System, PTX10002-60C System

06 References

kb.juniper.nethttps://kb.juniper.net/JSA11250x_refsource_CONFIRM
kb.juniper.nethttps://kb.juniper.net/KB10956x_refsource_MISC

07 Remediation

The following software releases have been updated to resolve this specific issue: Junos OS on PTX1000 System: 17.3R3-S12, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R1-S8, 18.4R2-S8, 18.4R3-S8, 19.1R3-S5, 19.2R3-S2, 19.3R2-S6, 19.3R3-S3, 19.4R2-S4, 19.4R3-S3, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2-S1, 20.3R3, 20.4R1-S1, 20.4R2, 21.1R1, and all subsequent releases. Junos OS on PTX10002-60C System: 18.4R3-S9, 19.4R2-S5, 19.4R3-S5, 20.1R3-S1, 20.2R3-S2, 20.3R3-S1, 21.1R2, 21.3R2, 21.4R1, and all subsequent releases.