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CVE-2019-0041

27
FAUCET Score

CVE-2019-0041 describes a vulnerability in Juniper Networks EX4300-MP Series devices running specific Junos OS 18.2 versions, where transit network traffic can bypass loopback interface (lo0) filters and reach the control plane, potentially causing traffic forwarding failures. This vulnerability carries a high CVSS score of 8.6, indicating a critical availability impact (A:H) with low attack complexity (AC:L) and no user interaction required (UI:N). There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
18.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
18.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 30th 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)

juniperworkaround availablevia nvd_reference
View patch

References

kb.juniper.net / JSA10933
MitigationVendor Advisory