UBUNTU-CVE-2026-49878

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Source
https://ubuntu.com/security/CVE-2026-49878
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49878
Upstream
  • CVE-2026-49878
Published
2026-10-05T19:17:00Z
Modified
2026-10-08T12:54:06Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In wpas_handle_robust_av_scs_recv_action of robust_av.c, there is a possible out-of-bounds write due to a logic error in the code. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Ubuntu:16.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4-0ubuntu3
2.4-0ubuntu4
2.4-0ubuntu5
2.4-0ubuntu6
2.4-0ubuntu6.2
2.4-0ubuntu6.3
2.4-0ubuntu6.4
2.4-0ubuntu6.5
2.4-0ubuntu6.6
2.4-0ubuntu6.7
2.4-0ubuntu6.8
2.4-0ubuntu6.8+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "1:2.4-0ubuntu6.8+esm1"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2.4-0ubuntu6.8+esm1"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2.4-0ubuntu6.8+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:18.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4-0ubuntu10
2:2.*
2:2.4-1.1ubuntu1
2:2.6-15ubuntu1
2:2.6-15ubuntu2
2:2.6-15ubuntu2.1
2:2.6-15ubuntu2.2
2:2.6-15ubuntu2.3
2:2.6-15ubuntu2.4
2:2.6-15ubuntu2.5
2:2.6-15ubuntu2.6
2:2.6-15ubuntu2.7
2:2.6-15ubuntu2.8
2:2.6-15ubuntu2.8+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.6-15ubuntu2.8+esm1"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.6-15ubuntu2.8+esm1"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.6-15ubuntu2.8+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:20.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2:2.*
2:2.9-1ubuntu2
2:2.9-1ubuntu3
2:2.9-1ubuntu4
2:2.9-1ubuntu4.1
2:2.9-1ubuntu4.2
2:2.9-1ubuntu4.3
2:2.9-1ubuntu4.4
2:2.9-1ubuntu4.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.9-1ubuntu4.6"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.9-1ubuntu4.6"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.9-1ubuntu4.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:22.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2:2.*
2:2.9.0-21build1
2:2.9.0-23
2:2.10-1
2:2.10-2
2:2.10-6
2:2.10-6ubuntu1
2:2.10-6ubuntu2
2:2.10-6ubuntu2.1
2:2.10-6ubuntu2.2
2:2.10-6ubuntu2.3
2:2.10-6ubuntu2.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eapoltest",
            "binary_version": "2:2.10-6ubuntu2.4"
        },
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.10-6ubuntu2.4"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.10-6ubuntu2.4"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.10-6ubuntu2.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:24.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2:2.*
2:2.10-15
2:2.10-18
2:2.10-20
2:2.10-21
2:2.10-21build2
2:2.10-21build3
2:2.10-21build4
2:2.10-21ubuntu0.1
2:2.10-21ubuntu0.2
2:2.10-21ubuntu0.3
2:2.10-21ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eapoltest",
            "binary_version": "2:2.10-21ubuntu0.4"
        },
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.10-21ubuntu0.4"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.10-21ubuntu0.4"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.10-21ubuntu0.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:26.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2:2.*
2:2.11-0ubuntu4
2:2.11-0ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eapoltest",
            "binary_version": "2:2.11-0ubuntu5"
        },
        {
            "binary_name": "hostapd",
            "binary_version": "2:2.11-0ubuntu5"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2:2.11-0ubuntu5"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2:2.11-0ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"
Ubuntu:Pro:14.04:LTS
wpa

Package

Name
wpa
Purl
pkg:deb/ubuntu/wpa?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0-3ubuntu2
1.0-3ubuntu3
1.0-3ubuntu4
2.*
2.1-0ubuntu1
2.1-0ubuntu1.1
2.1-0ubuntu1.2
2.1-0ubuntu1.3
2.1-0ubuntu1.4
2.1-0ubuntu1.5
2.1-0ubuntu1.6
2.1-0ubuntu1.7
2.1-0ubuntu1.7+esm1
2.1-0ubuntu1.7+esm2
2.1-0ubuntu1.7+esm3
2.1-0ubuntu1.7+esm4
2.1-0ubuntu1.7+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "hostapd",
            "binary_version": "1:2.1-0ubuntu1.7+esm5"
        },
        {
            "binary_name": "wpagui",
            "binary_version": "2.1-0ubuntu1.7+esm5"
        },
        {
            "binary_name": "wpasupplicant",
            "binary_version": "2.1-0ubuntu1.7+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"