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CVE-2020-1618

18
FAUCET Score

CVE-2020-1618 is an authentication bypass vulnerability affecting Juniper Networks EX and QFX Series devices running various Junos OS versions. An attacker with physical access to the console port could log in as root without a password during specific scenarios, such as after a factory reset or during the first reboot of a Virtual Chassis after a software upgrade. This vulnerability has a CVSS score of 6.8 (Medium), indicating high impact on confidentiality, integrity, and availability, but requires physical access (Attack Vector: Physical) and low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.4
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
29.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 61st percentile among its peer group of 1,532 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, 0.1 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 0.2 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 / JSA11001
Vendor Advisory