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TI-2019-06932 Aliases CVE-2019-9496GHSA-cvwc-47mg-vx9r

Improper authentication in Wi-Fi Alliance hostapd with SAE support

Priority MEDIUM 40CWE-642Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

Why it matters now

EPSS 0.04631 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Wi-Fi Alliancehostapd with SAE support2.7 – 2.7—No fix listedCNA
Wi-Fi Alliancewpa_supplicant with SAE support2.7 – 2.7—No fix listedCNA
  • hostapd with SAE support VendorWi-Fi Alliance Affected 2.7 – 2.7 Fixed in — No fix listed CNA
  • wpa_supplicant with SAE support VendorWi-Fi Alliance Affected 2.7 – 2.7 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*up to 2.7VulnerableWi-Fi Alliance
cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*up to 2.7VulnerableWi-Fi Alliance
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*28VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*29VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
  • cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* Versions up to 2.7 Vulnerable ·Wi-Fi Alliance
  • cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* Versions up to 2.7 Vulnerable ·Wi-Fi Alliance
  • cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* Versions 28 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Wi-Fi Alliance hostapd with SAE support, wpa_supplicant with SAE support — FEDORA-2019-d03bae77f5

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 5 records → Advisory →
  • Advisory ·

    Wi-Fi Alliance hostapd with SAE support, wpa_supplicant with SAE support — FEDORA-2019-eba1109acd

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 5 records → Advisory →
Show 2 more groups
  • Advisory ·

    Wi-Fi Alliance hostapd with SAE support, wpa_supplicant with SAE support — FEDORA-2019-f409af9fbe

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 5 records → Advisory →
  • Advisory ·

    Wi-Fi Alliance hostapd with SAE support, wpa_supplicant with SAE support — FreeBSD-SA-19:03

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 5 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-9496
  2. 2026-10-03 Alias added: GHSA-cvwc-47mg-vx9r

References

Patch 1

Advisory 5

Other 3

  • TI-2020-10094 The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the… CVSS 3.1HIGH 7.5
  • TI-2022-07426 The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
  • TI-2022-07427 The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
  • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.0HIGH 8.1
  • TI-2017-09721 Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of… CVSS 3.0HIGH 8.1
  • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.1HIGH 8.1
See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences