UBUNTU-CVE-2026-40527

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Source
https://ubuntu.com/security/CVE-2026-40527
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40527
Upstream
  • CVE-2026-40527
Published
2026-04-17T21:16:00Z
Modified
2026-05-20T16:25:40.079134784Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

radare2 prior to commit bc5a890 contains a command injection vulnerability in the afsv/afsvj command path where crafted ELF binaries can embed malicious r2 command sequences as DWARF DWTAGformal_parameter names. Attackers can craft a binary with shell commands in DWARF parameter names that execute when radare2 analyzes the binary with aaa and subsequently runs afsvj, allowing arbitrary shell command execution through the unsanitized parameter interpolation in the pfq command string.

References

Affected packages

Ubuntu:16.04:LTS
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.9.6-3.1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-0.9.6",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "radare2-plugins",
            "binary_version": "0.9.6-3.1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"
Ubuntu:25.10
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*
5.9.8+dfsg-2
5.9.8+dfsg-2ubuntu0.25.10.1
5.9.8+dfsg-2ubuntu0.25.10.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-5.0.0t64",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        },
        {
            "binary_name": "radare2",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"
Ubuntu:26.04:LTS
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=resolute

Affected ranges

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

Affected versions

5.*
5.9.8+dfsg-2
6.*
6.0.4+dfsg-1
6.0.7+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-6.0.0t64",
            "binary_version": "6.0.7+ds-1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "6.0.7+ds-1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "6.0.7+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"
Ubuntu:Pro:18.04:LTS
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

1.*
1.6.0+dfsg-1
2.*
2.0.0+dfsg-1
2.1.0+dfsg-1
2.3.0+dfsg-1
2.3.0+dfsg-2
2.3.0+dfsg-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-2.3",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"
Ubuntu:Pro:20.04:LTS
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

3.*
3.2.1+dfsg-5build1
4.*
4.0.0+dfsg-1
4.2.1+dfsg-1
4.2.1+dfsg-2
4.2.1+dfsg-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-4.2.1",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"
Ubuntu:Pro:24.04:LTS
radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

5.*
5.5.0+dfsg-1ubuntu1
5.5.0+dfsg-1.1ubuntu2
5.5.0+dfsg-1.1ubuntu3
5.5.0+dfsg-1.1ubuntu3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-5.0.0t64",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40527.json"