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wabt — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2025-6275

A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been declared as problematic. Affected by this vulnerability is the function GetFuncOffset of the file src/interp/binary-reader-interp.cc. The manipulation leads to use after free. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.

Products
wabt
Affected versions
1.0.11-1, 1.0.12-1, 1.0.13-1, 1.0.13-1build1, 1.0.20-1, 1.0.24-1, 1.0.24-2, 1.0.25-1, 1.0.26-1, 1.0.27-1, 1.0.33-1, 1.0.34+dsfg2+~cs1.0.32-1ubuntu1, 1.0.34+dsfg2+~cs1.0.32-1ubuntu2, 1.0.34-1, 1.0.36+dfsg+~cs1.0.36-2ubuntu1, 1.0.36+dfsg+~cs1.0.36-2ubuntu4
Fixed versions
Not specified
CVEs
CVE-2025-6275
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 01:48 UTC · Revision 1

Source evidence

UBUNTU-CVE-2025-6275

core-osv · Original source

Published 19 Jun 2025, 20:15 UTC

A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been declared as problematic. Affected by this vulnerability is the function GetFuncOffset of the file src/interp/binary-reader-interp.cc. The manipulation leads to use after free. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.

osv:UBUNTU-CVE-2025-6275

wabt

Fixed versions: Not specified

wabt

Fixed versions: Not specified

wabt

Fixed versions: Not specified

wabt

Fixed versions: Not specified

wabt

Fixed versions: Not specified

wabt

Fixed versions: Not specified

Complete source record
{
  "id": "6235f23af5e24dd129d40297282a24999ee89fa7f9df37a083fa0d545a83a644",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-6275",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2025-6275",
    "summary": "A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been declared as problematic. Affected by this vulnerability is the function GetFuncOffset of the file src/interp/binary-reader-interp.cc. The manipulation leads to use after free. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect \"real world wasm programs\". Therefore, this entry might get disputed as well in the future.",
    "evidence": "osv:UBUNTU-CVE-2025-6275",
    "products": [
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.11-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0.12-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0.13-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.0.13-1build1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.20-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0.24-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0.24-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0.25-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0.26-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.0.27-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.33-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0.34-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0.34+dsfg2+~cs1.0.32-1ubuntu1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.0.34+dsfg2+~cs1.0.32-1ubuntu2",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.34+dsfg2+~cs1.0.32-1ubuntu2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.0.36+dfsg+~cs1.0.36-2ubuntu1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.36+dfsg+~cs1.0.36-2ubuntu1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1.0.36+dfsg+~cs1.0.36-2ubuntu4",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "wabt",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.36+dfsg+~cs1.0.36-2ubuntu1",
            "evidence": "/affected/5/versions"
          }
        ]
      }
    ],
    "severity": "low",
    "structured": {
      "id": "UBUNTU-CVE-2025-6275",
      "aliases": [
        "UBUNTU-CVE-2025-6275"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=focal",
            "ecosystem": "Ubuntu:20.04:LTS"
          },
          "versions": [
            "1.0.11-1",
            "1.0.12-1",
            "1.0.13-1",
            "1.0.13-1build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.13-1build1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=jammy",
            "ecosystem": "Ubuntu:22.04:LTS"
          },
          "versions": [
            "1.0.20-1",
            "1.0.24-1",
            "1.0.24-2",
            "1.0.25-1",
            "1.0.26-1",
            "1.0.27-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.27-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "1.0.33-1",
            "1.0.34-1",
            "1.0.34+dsfg2+~cs1.0.32-1ubuntu1",
            "1.0.34+dsfg2+~cs1.0.32-1ubuntu2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.34+dsfg2+~cs1.0.32-1ubuntu2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "1.0.34+dsfg2+~cs1.0.32-1ubuntu2",
            "1.0.36+dfsg+~cs1.0.36-2ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.36+dfsg+~cs1.0.36-2ubuntu1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "1.0.36+dfsg+~cs1.0.36-2ubuntu1",
            "1.0.36+dfsg+~cs1.0.36-2ubuntu4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.36+dfsg+~cs1.0.36-2ubuntu4"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "wabt",
            "purl": "pkg:deb/ubuntu/wabt?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "1.0.36+dfsg+~cs1.0.36-2ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6275.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "wabt",
                "binary_version": "1.0.36+dfsg+~cs1.0.36-2ubuntu1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:57:28.605363997Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-6275"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2025-6275",
        "https://www.cve.org/CVERecord?id=CVE-2025-6275",
        "https://github.com/WebAssembly/wabt/issues/2614",
        "https://github.com/user-attachments/files/20623626/wabt_crash_5.txt",
        "https://vuldb.com/?ctiid.313279",
        "https://vuldb.com/?id.313279",
        "https://vuldb.com/?submit.593017"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-6275",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 357560,
  "published_at": "2025-06-19T20:15:00+00:00"
}