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Vulnerability record · CVE-2019-11235 · published 22 April 2019

CVE-2019-11235: Freeradius insufficient verification of data authenticity vulnerability

Freeradius · Freeradius

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid point on the curve being used" protection mechanism, aka a "Dragonblood" issue, a similar issue to CVE-2019-9498 and CVE-2019-9499.

9.8 CVSS 3.0 Critical EPSS 3.6% · top 11.1% CWE-345 · Insufficient verification of data authenticity
9.8CVSS 3.0 base score, v2 7.5
3.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid point on the curve being used" protection mechanism, aka a "Dragonblood" issue, a similar issue to CVE-2019-9498 and CVE-2019-9499.

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

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00014.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00033.html
https://access.redhat.com/errata/RHSA-2019:1131 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1142
https://bugzilla.redhat.com/show_bug.cgi?id=1695748 Issue TrackingPatchThird Party Advisory
https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19 Release NotesVendor Advisory
https://freeradius.org/security/ Vendor Advisory
https://papers.mathyvanhoef.com/dragonblood.pdf Technical DescriptionThird Party Advisory
https://usn.ubuntu.com/3954-1/ Third Party Advisory
https://www.kb.cert.org/vuls/id/871675/ Not ApplicableThird Party AdvisoryUS Government Resource
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00014.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00033.html
https://access.redhat.com/errata/RHSA-2019:1131 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1142
https://bugzilla.redhat.com/show_bug.cgi?id=1695748 Issue TrackingPatchThird Party Advisory
https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19 Release NotesVendor Advisory
https://freeradius.org/security/ Vendor Advisory
https://papers.mathyvanhoef.com/dragonblood.pdf Technical DescriptionThird Party Advisory
https://usn.ubuntu.com/3954-1/ Third Party Advisory
https://www.kb.cert.org/vuls/id/871675/ Not ApplicableThird Party AdvisoryUS Government Resource

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-11235), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.