01 Record
CVE-2021-0253
Junos OS: NFX Series: Local Command Execution Vulnerability in JDMD Leads to Privilege Escalation
HighPUBLISHEDCNA: juniper
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
02 Description
Junos OS: NFX Series: Local Command Execution Vulnerability in JDMD Leads to Privilege Escalation
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
- 0.54% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 45.4% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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
- 2021-04-22 19:37Z5 YR AGO
- Last updated
- 2024-09-16 22:20Z2 YR AGO
- Reserved
- 2020-10-27
- Assigning CNA
- juniper
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
- Data version
- 5.1
- Document digest
- 5805b3f39aed54164c562a9a4f76bd824de4b534adedee9bddd1d7e90c9217da
05 Affected products
VendorProductVersionsPlatforms
Juniper NetworksJunos OS< 18.3R3-S4, 17.2R1 to < 17.2*, 18.4 to < 18.4R2-S5, 18.4R3-S5, 19.1 to < 19.1R1-S3, 19.1R2 to < 19.2*, 19.3 to < 19.3R3, 19.4 to < 19.4R2-S2NFX Series
06 References
07 Remediation
The following software releases have been updated to resolve this specific issue: 18.3R3-S4, 18.4R2-S5, 18.4R3-S5, 19.1R3-S3, 19.2R3, 19.3R3, 19.4R2-S2, 20.1R1 and all subsequent releases.