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CVE-2020-1688

17
FAUCET Score

CVE-2020-1688 describes a vulnerability in Juniper Networks SRX and NFX Series devices running Junos OS, allowing a local authenticated user with shell access to obtain the Web API service private key. This key is used for encrypted communication with authentication services like Juniper Identity Management Service. The vulnerability has a CVSS score of 6.5 (Medium), indicating a low attack complexity and local access requirement, but a high confidentiality impact as it enables decryption of communications. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.3x48CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:*
12.3x48CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
12.3x48CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3x48:d100:*:*:*:*:*:*
12.3x48CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
12.3x48CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 81st percentile among its peer group of 15,938 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

junipervendor investigatingvia nvd_reference
View patch

References

kb.juniper.net / InfoCenter/index
Vendor Advisory
kb.juniper.net / JSA11085
Vendor Advisory
juniper.net / documentation/en_US/junos/topics/reference/configuration-statement/services-webapi-user-cli.html
Vendor Advisory
juniper.net / documentation/en_US/junos/topics/topic-map/security-user-auth-configure-jims.html
Vendor Advisory
juniper.net / documentation/en_US/junos/topics/topic-map/security-user-auth-intergrated-user-firewall-overview.html
Vendor Advisory