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CVE-2019-5061

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could...

7.4 HighFix available

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.92%Up 0.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 7.4

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
CVE-2019-5061
CVSS 3.0
7.4 HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness
CWE-440
Updated
2026-11-02
EUVDEUVD-2019-14668 7.4

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
EUVD-2019-14668
CVSS 3.0
7.4 HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-6626-64rf-2cvv 6.5

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could...

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
GHSA-6626-64rf-2cvv
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20, CWE-287, CWE-440
Updated
2026-11-02
NVD 6.5

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
CVE-2019-5061
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
7.4 HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0
3.3 LowAV:A/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-440, CWE-287
Updated
2026-11-02
OSV 6.5

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
CVE-2019-5061
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-04
OSVDEBIAN-CVE-2019-5061 6.5

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
DEBIAN-CVE-2019-5061
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-5061 6.5

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Record
UBUNTU-CVE-2019-5061
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
7.4 HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2026:12398-1 No score

hostapd-2.12-1.1 on GA media

These are all security issues fixed in the hostapd-2.12-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12398-1
Updated
2026-11-04

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wpa
Debian:12
before 2:2.9+git20200213+877d9a0-1
2:2.9+git20200213+877d9a0-1
wpa
Debian:13
before 2:2.9+git20200213+877d9a0-1
2:2.9+git20200213+877d9a0-1
wpa
Debian:14
before 2:2.9+git20200213+877d9a0-1
2:2.9+git20200213+877d9a0-1
wpa
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
1.0-3ubuntu21.0-3ubuntu31.0-3ubuntu42.1-0ubuntu12.1-0ubuntu1.1
Show 11 moreShow less
2.1-0ubuntu1.22.1-0ubuntu1.32.1-0ubuntu1.42.1-0ubuntu1.52.1-0ubuntu1.62.1-0ubuntu1.72.1-0ubuntu1.7+esm12.1-0ubuntu1.7+esm22.1-0ubuntu1.7+esm32.1-0ubuntu1.7+esm42.1-0ubuntu1.7+esm5
None known
wpa
Ubuntu:16.04:LTS
All versions, plus listed versions
2.4-0ubuntu32.4-0ubuntu42.4-0ubuntu52.4-0ubuntu62.4-0ubuntu6.2
Show 7 moreShow less
2.4-0ubuntu6.32.4-0ubuntu6.42.4-0ubuntu6.52.4-0ubuntu6.62.4-0ubuntu6.72.4-0ubuntu6.82.4-0ubuntu6.8+esm1
None known
wpa
Ubuntu:18.04:LTS
All versions, plus listed versions
2.4-0ubuntu102:2.4-1.1ubuntu12:2.6-15ubuntu12:2.6-15ubuntu22:2.6-15ubuntu2.1
Show 8 moreShow less
2:2.6-15ubuntu2.22:2.6-15ubuntu2.32:2.6-15ubuntu2.42:2.6-15ubuntu2.52:2.6-15ubuntu2.62:2.6-15ubuntu2.72:2.6-15ubuntu2.82:2.6-15ubuntu2.8+esm1
None known
wpa
Ubuntu:20.04:LTS
All versions, plus listed versions
2:2.9-1ubuntu22:2.9-1ubuntu32:2.9-1ubuntu42:2.9-1ubuntu4.12:2.9-1ubuntu4.22:2.9-1ubuntu4.32:2.9-1ubuntu4.42:2.9-1ubuntu4.6
None known
hostapd
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
before 2.12-1.1
2.12-1.1

History

History
RecordedChangedSources
affected
affected, aliases, facts, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-5061 is a high vulnerability (CVSS 7.4) in W1.fi Hostapd, published December 12, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. Fixed in wpa 2:2.9+git20200213+877d9a0-1.

References

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