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CVE-2019-11234

35
FAUCET Score

CVE-2019-11234 is a critical vulnerability in FreeRADIUS versions prior to 3.0.19, affecting products from vendors like Canonical, Fedora Project, and Red Hat. This "Dragonblood" issue allows authentication spoofing through reflection, similar to CVE-2019-9497. With a CVSS score of 9.8, it is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.19CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
18.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.62%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0762 is in the 89th percentile among its peer group of 36,829 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: freeradius-0:3.0.13-10.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: freeradius:3.0-8000020190425181943.75ec4169
View patch

Vendor Advisories (1)

redhatCVE-2019-11234Moderate

freeradius: eap-pwd: fake authentication using reflection

Apr 10, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-05/msg00014.html
lists.opensuse.org / opensuse-security-announce/2019-05/msg00032.html
lists.opensuse.org / opensuse-security-announce/2020-04/msg00033.html
access.redhat.com / errata/RHSA-2019:1131
access.redhat.com / errata/RHSA-2019:1142
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
freeradius.org / release_notes
Release NotesVendor Advisory
freeradius.org / security
Vendor Advisory
papers.mathyvanhoef.com / dragonblood.pdf
Technical DescriptionThird Party Advisory
usn.ubuntu.com / 3954-1
Third Party Advisory
kb.cert.org / vuls/id/871675
Not ApplicableThird Party AdvisoryUS Government Resource