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Fencer Vulns
medium 6.5

CVE-2019-16275 json

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source addr…

published 2019-09-12 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7074

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

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.

Patch / fix

  • wpa Debian 14, Debian 13, Debian 12 2:2.9-2

debian advisories DEBIAN-CVE-2019-16275

  • wpa Ubuntu 16.04 LTS 2.4-0ubuntu6.6
  • wpa Ubuntu 18.04 LTS 2:2.6-15ubuntu2.5
  • wpa Ubuntu Pro 14.04 LTS 2.1-0ubuntu1.7+esm2

ubuntu advisories UBUNTU-CVE-2019-16275

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wpa_supplicant SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +11 more 2.6-15.13.1
  • wpa_supplicant SLES for SAP 12 SP5, SLES 12 SP5 2.9-23.3.1
  • wpa_supplicant SLES for SAP 15, SLES 15-LTSS, SLE Module for Basesystem 15 SP2 +3 more 2.9-4.20.1

suse advisories SUSE-SU-2021:0478-1SUSE-SU-2020:3424-1SUSE-SU-2020:3380-1

  • hostapd openSUSE Tumbleweed 2.9-6.2
  • wpa_supplicant openSUSE Tumbleweed 2.9-13.4
  • hostapd Package Hub 15 SP2 2.9-bp152.2.3.1
  • hostapd openSUSE Leap 15.2 2.9-lp152.2.3.1
  • wpa_supplicant openSUSE Leap 15.2 2.9-lp152.8.3.1
  • wpa_supplicant openSUSE Leap 15.1 2.9-lp151.5.10.1

opensuse advisories openSUSE-SU-2024:10846-1openSUSE-SU-2024:11515-1openSUSE-SU-2021:0545-1openSUSE-SU-2021:0519-1openSUSE-SU-2020:2059-1openSUSE-SU-2020:2053-1

  • hostapd Alpine 3.10 2.8-r2
  • hostapd Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 2.9-r1
  • hostapd Alpine 3.7 2.6-r6
  • hostapd Alpine 3.8 2.6-r7
  • hostapd Alpine 3.9 2.7-r5
  • wpa_supplicant Alpine 3.10 2.8-r3
  • wpa_supplicant Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 2.9-r5
  • wpa_supplicant Alpine 3.8, Alpine 3.7 2.6-r16

alpine advisories ALPINE-CVE-2019-16275

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wpa_supplicant CBL-Mariner 2.0 2.9-4

azure linux advisories AZL-6972

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-16275 updated cvss 6.5

wpa_supplicant: AP mode PMF disconnection protection bypass

  • Red Hat Enterprise Linux 5 wpa_supplicant Red Hat Enterprise Linux 6 wpa_supplicant Red Hat Enterprise Linux 7 wpa_supplicant Red Hat Enterprise Linux 8 wpa_supplicant
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.