What’s Vulnerable › Vulnerabilities

CVE-2017-9148

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-29 · updated 2026-06-17
• Weakness: CWE-287

Description

The TLS session cache in FreeRADIUS 2.1.1 through 2.1.7, 3.0.x before 3.0.14, 3.1.x before 2017-02-04, and 4.0.x before 2017-02-04 fails to reliably prevent resumption of an unauthenticated session, which allows remote attackers (such as malicious 802.1X supplicants) to bypass authentication via PEAP or TTLS.

Affected products

• freeradius: 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.6, 2.1.7 (+15)

References

• http://freeradius.org/security.html
• http://seclists.org/oss-sec/2017/q2/422
• http://www.securityfocus.com/bid/98734
• http://www.securitytracker.com/id/1038576
• https://access.redhat.com/errata/RHSA-2017:1581
• https://security.gentoo.org/glsa/201706-27
• http://freeradius.org/security.html
• http://seclists.org/oss-sec/2017/q2/422
• http://www.securityfocus.com/bid/98734
• http://www.securitytracker.com/id/1038576
• https://access.redhat.com/errata/RHSA-2017:1581
• https://security.gentoo.org/glsa/201706-27

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