HOME VULNERABILITIESCVE-2019-17185

HIGH

CVE-2019-17185

CWE-662Published: March 21, 2020· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.

Technical Analysis

CVE-2019-17185 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

freeradius1 product(s)

freeradius

openSUSE1 product(s)

leap

Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html

ADVISORYhttps://freeradius.org/security/

ADVISORYhttps://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html

ADVISORYhttps://freeradius.org/security/

ADVISORYhttps://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20

All References (6)

→

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing List · Third Party Advisory

→

https://freeradius.org/security/Vendor Advisory

→

https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20Release Notes · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing List · Third Party Advisory

→

https://freeradius.org/security/Vendor Advisory

→

https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20Release Notes · Third Party Advisory

Quick Facts

CVE IDCVE-2019-17185

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-662

CISA KEVNo

Affected2 vendor(s)

PublishedMar 21, 2020

Related CVEs (CWE-662)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-17185 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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