UBUNTU-CVE-2026-26127

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Source
https://ubuntu.com/security/CVE-2026-26127
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26127.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-26127
Upstream
  • CVE-2026-26127
Downstream
Related
Published
2026-03-10T00:00:00Z
Modified
2026-03-14T09:20:21.784510Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

References

Affected packages

Ubuntu:22.04:LTS / dotnet7

Package

Name
dotnet7
Purl
pkg:deb/ubuntu/dotnet7@7.0.119-0ubuntu1~22.04.1?arch=source&distro=jammy

Affected ranges

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

Affected versions

7.*
7.0.105-0ubuntu1~22.04.1
7.0.107-0ubuntu1~22.04.1
7.0.108-0ubuntu1~22.04.1
7.0.109-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
7.0.111-0ubuntu1~22.04.1
7.0.112-0ubuntu1~22.04.1
7.0.113-0ubuntu1~22.04.1
7.0.114-0ubuntu1~22.04.1
7.0.115-0ubuntu1~22.04.1
7.0.116-0ubuntu1~22.04.1
7.0.117-0ubuntu1~22.04.1
7.0.117-0ubuntu1~22.04.2
7.0.119-0ubuntu1~22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "aspnetcore-runtime-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "aspnetcore-targeting-pack-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-apphost-pack-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-host-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-hostfxr-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-runtime-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-sdk-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-sdk-7.0-source-built-artifacts",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-targeting-pack-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet-templates-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "dotnet7",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        },
        {
            "binary_name": "netstandard-targeting-pack-2.1-7.0",
            "binary_version": "7.0.119-0ubuntu1~22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26127.json"

Ubuntu:24.04:LTS / dotnet10

Package

Name
dotnet10
Purl
pkg:deb/ubuntu/dotnet10@10.0.104-10.0.4-0ubuntu1~24.04.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.0.104-10.0.4-0ubuntu1~24.04.1

Affected versions

10.*
10.0.100-10.0.0-0ubuntu1~24.04.1
10.0.101-10.0.1-0ubuntu1~24.04.2
10.0.103-10.0.3-0ubuntu1~24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "aspnetcore-runtime-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "aspnetcore-runtime-dbg-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "aspnetcore-targeting-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-apphost-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-host-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-hostfxr-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-runtime-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-runtime-dbg-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-sdk-10.0",
            "binary_version": "10.0.104-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-sdk-10.0-source-built-artifacts",
            "binary_version": "10.0.104-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-sdk-aot-10.0",
            "binary_version": "10.0.104-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-sdk-dbg-10.0",
            "binary_version": "10.0.104-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-targeting-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet-templates-10.0",
            "binary_version": "10.0.104-0ubuntu1~24.04.1"
        },
        {
            "binary_name": "dotnet10",
            "binary_version": "10.0.104-10.0.4-0ubuntu1~24.04.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26127.json"

Ubuntu:25.10 / dotnet10

Package

Name
dotnet10
Purl
pkg:deb/ubuntu/dotnet10@10.0.104-10.0.4-0ubuntu1~25.10.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.0.104-10.0.4-0ubuntu1~25.10.1

Affected versions

10.*
10.0.100-10.0.0~rc1-0ubuntu1
10.0.100-10.0.0~rc2-0ubuntu1~25.10.2
10.0.100-10.0.0-0ubuntu1~25.10.1
10.0.101-10.0.1-0ubuntu1~25.10.2
10.0.103-10.0.3-0ubuntu1~25.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "aspnetcore-runtime-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "aspnetcore-runtime-dbg-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "aspnetcore-targeting-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-apphost-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-host-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-hostfxr-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-runtime-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-runtime-dbg-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-10.0",
            "binary_version": "10.0.104-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-10.0-source-built-artifacts",
            "binary_version": "10.0.104-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-aot-10.0",
            "binary_version": "10.0.104-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-dbg-10.0",
            "binary_version": "10.0.104-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-targeting-pack-10.0",
            "binary_version": "10.0.4-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-templates-10.0",
            "binary_version": "10.0.104-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet10",
            "binary_version": "10.0.104-10.0.4-0ubuntu1~25.10.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26127.json"

Ubuntu:25.10 / dotnet9

Package

Name
dotnet9
Purl
pkg:deb/ubuntu/dotnet9@9.0.115-9.0.14-0ubuntu1~25.10.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.0.115-9.0.14-0ubuntu1~25.10.1

Affected versions

9.*
9.0.105-9.0.4-0ubuntu1
9.0.106-9.0.5-0ubuntu1
9.0.107-9.0.6-0ubuntu1
9.0.108-9.0.7-0ubuntu1
9.0.109-9.0.8-0ubuntu1
9.0.110-9.0.9-0ubuntu1
9.0.111-9.0.10-0ubuntu1~25.10.1
9.0.112-9.0.11-0ubuntu1~25.10.1
9.0.113-9.0.12-0ubuntu1~25.10.1
9.0.114-9.0.13-0ubuntu1~25.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "aspnetcore-runtime-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "aspnetcore-runtime-dbg-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "aspnetcore-targeting-pack-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-apphost-pack-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-host-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-hostfxr-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-runtime-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-runtime-dbg-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-9.0",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-9.0-source-built-artifacts",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-aot-9.0",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-sdk-dbg-9.0",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-targeting-pack-9.0",
            "binary_version": "9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet-templates-9.0",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "dotnet9",
            "binary_version": "9.0.115-9.0.14-0ubuntu1~25.10.1"
        },
        {
            "binary_name": "netstandard-targeting-pack-2.1-9.0",
            "binary_version": "9.0.115-0ubuntu1~25.10.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26127.json"