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CVE-2020-1627

25
FAUCET Score

CVE-2020-1627 is a Denial of Service vulnerability in Juniper Networks Junos OS affecting vMX and MX150 devices running specific versions. An unauthenticated attacker can crash the riot forwarding daemon by sending specially crafted packets destined for the device, leading to a sustained DoS. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity and high impact on availability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
18.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
18.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
18.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
18.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
18.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.29%
Probability of exploitation in next 30 days
EPSS Percentile
67.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0129 is in the 47th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 / JSA11006
Vendor Advisory