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Vulnerability record · CVE-2019-16275 · published 12 September 2019

CVE-2019-16275: W1.fi hostapd origin validation error vulnerability

WW1.Fi · Hostapd

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.

6.5 CVSS 3.1 Medium EPSS 1.2% · top 32.3% CWE-346 · Origin validation error
6.5CVSS 3.1 base score, v2 3.3
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
28References
17 Jun 2026Last modified by NVD

Description

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.

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

Affected products

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

References

LinkTags
http://www.openwall.com/lists/oss-security/2019/09/12/6 Mailing ListMitigationThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00017.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36G4XAZ644DMHBLKOL4FDSP
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7NCLOPTZNRRNYODH22BFID
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FEGITWRTIWABW54ANEPCEF4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY6STGJIIROVNIU6VMB2WTN
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PBJXUKV6XMSELWNXPS37CSU
https://seclists.org/bugtraq/2019/Sep/56 Mailing ListThird Party Advisory
https://usn.ubuntu.com/4136-1/ Third Party Advisory
https://usn.ubuntu.com/4136-2/ Third Party Advisory
https://w1.fi/security/2019-7/ PatchVendor Advisory
https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt MitigationVendor Advisory
https://www.debian.org/security/2019/dsa-4538 Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/09/11/7 Mailing ListMitigationThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/09/12/6 Mailing ListMitigationThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00017.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36G4XAZ644DMHBLKOL4FDSP
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7NCLOPTZNRRNYODH22BFID
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FEGITWRTIWABW54ANEPCEF4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY6STGJIIROVNIU6VMB2WTN
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PBJXUKV6XMSELWNXPS37CSU
https://seclists.org/bugtraq/2019/Sep/56 Mailing ListThird Party Advisory
https://usn.ubuntu.com/4136-1/ Third Party Advisory
https://usn.ubuntu.com/4136-2/ Third Party Advisory
https://w1.fi/security/2019-7/ PatchVendor Advisory
https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt MitigationVendor Advisory
https://www.debian.org/security/2019/dsa-4538 Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/09/11/7 Mailing ListMitigationThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-16275), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.