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CVE-2019-19343

25
FAUCET Score

CVE-2019-19343 is a memory leak vulnerability in Undertow, specifically when used with Remoting in Red Hat JBoss EAP before version 7.2.4, as well as Undertow versions before 2.0.25.SP1 and jboss-remoting before 5.0.14.SP1. This flaw, rated High severity (CVSS 7.5), allows unauthenticated remote attackers to cause a denial of service by holding remote connections indefinitely. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.0.14CPE matchmatch criteria
cpe:2.3:a:redhat:jboss-remoting:*:*:*:*:*:*:*:*
5.0.14CPE matchmatch criteria
cpe:2.3:a:redhat:jboss-remoting:5.0.14:-:*:*:*:*:*:*
< 7.2.4CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:*
< 2.0.25CPE matchmatch criteria
cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
2.0.25CPE matchmatch criteria
cpe:2.3:a:redhat:undertow:2.0.25:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.63%
Probability of exploitation in next 30 days
EPSS Percentile
73.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0163 is in the 56th percentile among its peer group of 51,553 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

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Fuse 7.8.0Fixed in: undertow
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss EAP 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Continuous DeliveryFixed in: undertow
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: undertow

Vendor Advisories (1)

redhatCVE-2019-19343Moderate

Undertow: Memory Leak in Undertow HttpOpenListener due to holding remoting connections indefinitely

Dec 6, 2019

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
issues.redhat.com / browse/JBEAP-16695
Permissions RequiredVendor Advisory
security.netapp.com / advisory/ntap-20220211-0002
Third Party Advisory