UBUNTU-CVE-2026-9541

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Source
https://ubuntu.com/security/CVE-2026-9541
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-9541
Upstream
  • CVE-2026-9541
Published
2026-05-26T14:16:00Z
Modified
2026-05-29T18:01:01.835259542Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A security flaw has been discovered in Squirrel up to 3.2. Impacted is the function ReadObject of the file squirrel/sqobject.cpp of the component Cnut File Handler. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

References

Affected packages

Ubuntu:18.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.1-4
3.1-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-5"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json"

Ubuntu:20.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.1-8
3.1-8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8build1"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json"

Ubuntu:22.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.1-8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8build1"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json"

Ubuntu:25.10 / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.1-8.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8.2"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json"

Ubuntu:26.04:LTS / squirrel3

Package

Name
squirrel3
Purl
pkg:deb/ubuntu/squirrel3?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.1-8.2
3.1-8.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsquirrel3-0",
            "binary_version": "3.1-8.3"
        },
        {
            "binary_name": "squirrel3",
            "binary_version": "3.1-8.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9541.json"