Security readout for executives and security teams
CVE-2019-0046 can cause certain Juniper EX4300 switches to stop serving normally when vulnerable Junos OS receives specific valid broadcast traffic on the me0 management interface. Restoring service requires a reboot, and repeated traffic can keep the device unavailable. Exposure is most likely where EX4300 devices run listed vulnerable Junos releases and the me0 interface is reachable from a shared management or adjacent network segment. Treat as a planned remediation item for environments relying on EX4300 availability. Urgency rises if management networks are broadly reachable or outages would affect critical operations. Mitigation focus: Check Juniper JSA10938 for the exact fixed release for each deployed Junos train.; Upgrade affected EX4300 devices to a fixed or later Junos OS release.; Restrict me0 management access to trusted management networks where feasible..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.juniper.net/JSA10938CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.