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CVE-2019-0001

26
FAUCET Score

CVE-2019-0001 describes a denial-of-service vulnerability in Juniper Networks Junos OS on MX Series devices with dynamic VLAN configuration. A specially crafted packet can trigger an uncontrolled recursion loop in the bbe-smgd daemon, leading to high CPU usage and service crashes. This vulnerability has a CVSSv3 score of 7.5 (HIGH), indicating it can be exploited remotely with low attack complexity to achieve high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:-:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:16.1:r3-s10:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
3.05%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0305 is in the 75th 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 / JSA10900
Vendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE
securityfocus.com / bid/106541
Third Party AdvisoryVDB Entry