CVE detail

CVE-2021-0248 — CVE-2021-0248

Published 2021-04-22 · Modified 2026-06-17 · Vendor juniper · Product junos · Source nvd
CRITICAL
severity
CVSS-derived band
10.0
CVSS v3
0–10 scale
0.0103
EPSS probability
exploitation probability, 30d
60.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX Series. No other platforms besides NFX Series devices are affected.

Remediation

vendor remediation guidance

The following software releases have been updated to resolve this specific issue: 19.1R1, and all subsequent releases.

workarounds

There are no known workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to the device's administrative interfaces to only trusted administrative networks, hosts and users.

ProductVulnerable rangeFixed versionAdvisory
Juniper Networks Junos OS>=unspecified<19.1R119.1R1advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.