CVE-2017-2321

CVE-2017-2321 is a high-severity vulnerability in Juniper Northstar Controller with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

A vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow an unauthenticated, unprivileged, network-based attacker to cause various system services partial to full denials of services, modification of system states and files, and potential disclosure of sensitive information which may assist the attacker in further attacks on the system through the use of multiple attack vectors, including man-in-the-middle attacks, file injections, and malicious execution of commands causing out of bound memory conditions leading to other attacks.

Frequently asked questions

What is CVE-2017-2321?
A vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow an unauthenticated, unprivileged, network-based attacker to cause various system services partial to full denials of services, modification of system states and files, and potential disclosure of sensitive information which may assist the attacker in further attacks on the system through the use of multiple attack vectors, including man-in-the-middle attacks, file injections, and malicious execution of commands causing out of bound memory conditions leading to other attacks.
How severe is CVE-2017-2321?
CVE-2017-2321 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2017-2321 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-2321?
CVE-2017-2321 affects Juniper Northstar Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-2321?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-2321 published?
CVE-2017-2321 was published on 2017-04-24 and last updated on 2026-06-17.

References

Affected products (1)

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