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CVE-2018-0026

25
FAUCET Score

CVE-2018-0026 describes a vulnerability in Juniper Networks Junos OS where stateless firewall filter configurations may fail to apply after a device reboot or upgrade. This issue affects Junos OS versions 15.1R4, 15.1R5, 15.1R6, and 15.1X8 prior to 15.1X8.3. The vulnerability has a CVSS v3.0 score of 7.5 (HIGH), indicating a network-based attack with low complexity that can lead to high integrity impact (bypassing firewall rules) without requiring user interaction. 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
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:*
15.1x8CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1x8:*:*:*:*:*:*:*
>= 15.1X8, < 15.1X8.3CPE match
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 58th percentile among its peer group of 51,551 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 / JSA10859
Vendor Advisory
securityfocus.com / bid/104720
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041315
Third Party AdvisoryVDB Entry