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CVE-2020-1630

16
FAUCET Score

CVE-2020-1630 is a privilege escalation vulnerability in Juniper Networks Junos OS, specifically impacting devices configured with dual Routing Engines, Virtual Chassis, or high-availability clusters. A local, authenticated, low-privileged user with shell access can exploit this to perform unauthorized configuration modifications. This vulnerability does not affect single RE or stand-alone configurations. The vulnerability has a CVSS v3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity, requiring low privileges, and resulting in high integrity impact without affecting confidentiality or availability. Its EPSS score is very low, suggesting a minimal likelihood of exploitation in the wild. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal, indicating low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
12.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 56th percentile among its peer group of 15,940 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 / JSA11010
Vendor Advisory