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CVE-2019-0036

30
FAUCET Score

CVE-2019-0036 describes a critical vulnerability in Juniper Networks Junos OS where stateless firewall filter terms named "internal-n" are silently ignored, leading to unintended packet matching. This flaw affects numerous Junos OS versions across various release trains. With a CVSS score of 9.8 (CRITICAL), it presents a high risk due to its network attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 43rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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 / JSA10925
Vendor Advisory