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CVE-2020-1640

25
FAUCET Score

CVE-2020-1640 is a Denial of Service (DoS) vulnerability in Juniper Networks Junos OS, affecting the RPD (routing protocols process) daemon. An improper use of a validation framework allows an unauthenticated attacker to crash RPD by continuously sending specially crafted BGP packets, impacting various Junos OS versions from 16.1 to 20.1. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a significant impact. It can be exploited remotely over the network with low attack complexity, requiring no authentication, and results in a complete loss of availability for affected devices. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r7-s6:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r7-s7:*:*:*:*:*:*
17.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:17.3:r2-s5:*:*:*:*:*:*
17.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:17.3:r3-s6:*:*:*:*:*:*
17.3CPE matchmatch criteria
cpe:2.3:o:juniper:junos:17.3:r3-s7:*:*:*:*:*:*

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
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 50th percentile among its peer group of 51,485 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 / JSA11024
Vendor Advisory