CVE-2021-0220

CVE-2021-0220 is a medium-severity vulnerability in Juniper Junos Space with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Description

The Junos Space Network Management Platform has been found to store shared secrets in a recoverable format that can be exposed through the UI. An attacker who is able to execute arbitrary code in the victim browser (for example via XSS) or access cached contents may be able to obtain a copy of credentials managed by Junos Space. The impact of a successful attack includes, but is not limited to, obtaining access to other servers connected to the Junos Space Management Platform. This issue affects Juniper Networks Junos Space versions prior to 20.3R1.

Frequently asked questions

What is CVE-2021-0220?
The Junos Space Network Management Platform has been found to store shared secrets in a recoverable format that can be exposed through the UI. An attacker who is able to execute arbitrary code in the victim browser (for example via XSS) or access cached contents may be able to obtain a copy of credentials managed by Junos Space. The impact of a successful attack includes, but is not limited to, obtaining access to other servers connected to the Junos Space Management Platform. This issue affects Juniper Networks Junos Space versions prior to 20.3R1.
How severe is CVE-2021-0220?
CVE-2021-0220 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-0220 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0220?
CVE-2021-0220 primarily affects Juniper Junos Space. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-0220?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-0220 published?
CVE-2021-0220 was published on 2021-01-15 and last updated on 2026-06-17.

References

Affected products (44)

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