usn-7509-1
Vulnerability from osv_ubuntu
Published
2025-05-16 09:51
Modified
2026-04-27 14:11
Summary
dotnet8, dotnet9 vulnerability
Details

It was discovered that .NET did not properly handle file names and paths under certain conditions. An attacker could possibly use this issue to perform spoofing over a network.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-26646",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "aspnetcore-runtime-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "aspnetcore-runtime-dbg-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "aspnetcore-targeting-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-apphost-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-host-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-hostfxr-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-runtime-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-runtime-dbg-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-8.0",
            "binary_version": "8.0.116-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-8.0-source-built-artifacts",
            "binary_version": "8.0.116-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-dbg-8.0",
            "binary_version": "8.0.116-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-targeting-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-templates-8.0",
            "binary_version": "8.0.116-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet8",
            "binary_version": "8.0.116-8.0.16-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "netstandard-targeting-pack-2.1-8.0",
            "binary_version": "8.0.116-0ubuntu1~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "dotnet8",
        "purl": "pkg:deb/ubuntu/dotnet8@8.0.116-8.0.16-0ubuntu1~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.116-8.0.16-0ubuntu1~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.102-8.0.2-0ubuntu1~22.04.1",
        "8.0.103-8.0.3-0ubuntu1~22.04.1",
        "8.0.103-8.0.3-0ubuntu1~22.04.2",
        "8.0.105-8.0.5-0ubuntu1~22.04.1",
        "8.0.107-8.0.7-0ubuntu1~22.04.1",
        "8.0.108-8.0.8-0ubuntu1~22.04.1",
        "8.0.110-8.0.10-0ubuntu1~22.04.1",
        "8.0.111-8.0.11-0ubuntu1~22.04.1",
        "8.0.112-8.0.12-0ubuntu1~22.04.1",
        "8.0.114-8.0.14-0ubuntu1~22.04.1",
        "8.0.115-8.0.15-0ubuntu1~22.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-26646",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "aspnetcore-runtime-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "aspnetcore-runtime-dbg-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "aspnetcore-targeting-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-apphost-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-host-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-hostfxr-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-runtime-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-runtime-dbg-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-sdk-8.0",
            "binary_version": "8.0.116-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-sdk-8.0-source-built-artifacts",
            "binary_version": "8.0.116-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-sdk-dbg-8.0",
            "binary_version": "8.0.116-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-targeting-pack-8.0",
            "binary_version": "8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet-templates-8.0",
            "binary_version": "8.0.116-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "dotnet8",
            "binary_version": "8.0.116-8.0.16-0ubuntu1~24.04.1"
          },
          {
            "binary_name": "netstandard-targeting-pack-2.1-8.0",
            "binary_version": "8.0.116-0ubuntu1~24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "dotnet8",
        "purl": "pkg:deb/ubuntu/dotnet8@8.0.116-8.0.16-0ubuntu1~24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.116-8.0.16-0ubuntu1~24.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.100-8.0.0~rc1-0ubuntu1",
        "8.0.100-8.0.0~rc2-0ubuntu1",
        "8.0.100-8.0.0~rc2-0ubuntu2",
        "8.0.100-8.0.0-0ubuntu1",
        "8.0.100-8.0.0-0ubuntu2",
        "8.0.101-8.0.1-0ubuntu1",
        "8.0.101-8.0.1-0ubuntu2",
        "8.0.102-8.0.2-0ubuntu1",
        "8.0.103-8.0.3-0ubuntu2",
        "8.0.103-8.0.3-0ubuntu3",
        "8.0.104-8.0.4-0ubuntu1",
        "8.0.105-8.0.5-0ubuntu1~24.04.1",
        "8.0.107-8.0.7-0ubuntu1~24.04.1",
        "8.0.108-8.0.8-0ubuntu1~24.04.1",
        "8.0.108-8.0.8-0ubuntu1~24.04.2",
        "8.0.110-8.0.10-0ubuntu1~24.04.1",
        "8.0.111-8.0.11-0ubuntu1~24.04.1",
        "8.0.112-8.0.12-0ubuntu1~24.04.1",
        "8.0.114-8.0.14-0ubuntu1~24.04.1",
        "8.0.115-8.0.15-0ubuntu1~24.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that .NET did not properly handle file names and paths\nunder certain conditions. An attacker could possibly use this issue to\nperform spoofing over a network.",
  "id": "USN-7509-1",
  "modified": "2026-04-27T14:11:42Z",
  "published": "2025-05-16T09:51:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7509-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-26646"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dotnet8, dotnet9 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2025-26646"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.