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CVE-2017-2320

25
FAUCET Score

CVE-2017-2320 is a critical vulnerability affecting Juniper Networks NorthStar Controller Application versions prior to 2.1.0 Service Pack 1. This flaw allows an unauthenticated, network-based attacker to achieve full denial of service, information disclosure, and unauthorized modification of the NorthStar system and managed devices. With a CVSS score of 10.0 (CRITICAL), it presents a severe risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it has not been added to CISA's KEV catalog, indicating no known active exploitation. Community discussion and media coverage are minimal, suggesting low public awareness despite its high severity.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.0CPE matchmatch criteria
cpe:2.3:a:juniper:northstar_controller:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 65th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

juniperworkaround availablevia nvd_reference
View patch

References

kb.juniper.net / JSA10783
MitigationVendor Advisory
securityfocus.com / bid/97687
Third Party AdvisoryVDB Entry