Vulnerability-Lookup

ubuntu-cve-2025-14956

Vulnerability from osv_ubuntu

Published

2025-12-19 17:15

Modified

2026-05-20 15:16

Summary

Details

A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue.

Severity

5.3 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

7.1 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

1.9 (Low)


                    
                      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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-14956	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-14956	REPORT
	https://github.com/WebAssembly/binaryen/issues/8089	REPORT
	https://github.com/WebAssembly/binaryen/pull/8092	REPORT
	https://github.com/WebAssembly/binaryen/commit/4f…	REPORT
	https://github.com/oneafter/1204/blob/main/hbf	REPORT
	https://vuldb.com/?ctiid.337592	REPORT
	https://vuldb.com/?id.337592	REPORT
	https://vuldb.com/?submit.717315	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "binaryen",
            "binary_version": "91-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "binaryen",
        "purl": "pkg:deb/ubuntu/binaryen@91-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "89-1",
        "90-1",
        "91-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "binaryen",
            "binary_version": "105-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "binaryen",
        "purl": "pkg:deb/ubuntu/binaryen@105-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "99-3",
        "105-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "binaryen",
            "binary_version": "108-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "binaryen",
        "purl": "pkg:deb/ubuntu/binaryen@108-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "108-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "binaryen",
            "binary_version": "120-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "binaryen",
        "purl": "pkg:deb/ubuntu/binaryen@120-4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "120-3",
        "120-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "binaryen",
            "binary_version": "120-4build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "binaryen",
        "purl": "pkg:deb/ubuntu/binaryen@120-4build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "120-4",
        "120-4build1"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue.",
  "id": "UBUNTU-CVE-2025-14956",
  "modified": "2026-05-20T15:16:04Z",
  "published": "2025-12-19T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-14956"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-14956"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/WebAssembly/binaryen/issues/8089"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/WebAssembly/binaryen/pull/8092"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/WebAssembly/binaryen/commit/4f52bff8c4075b5630422f902dd92a0af2c9f398"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/oneafter/1204/blob/main/hbf"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.337592"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?id.337592"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?submit.717315"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-14956"
  ]
}

CVE-2025-14956 (GCVE-0-2025-14956)

Vulnerability from cvelistv5 – Published: 2025-12-19 16:32 – Updated: 2026-02-24 05:57 X_Open Source

Title

WebAssembly Binaryen wasm-binary.cpp readExport heap-based overflow

Summary

Severity

4.8 (Medium)


                        
                          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

5.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

5.3 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB

References

8 references

URL	Tags
https://vuldb.com/?id.337592	vdb-entrytechnical-description
https://vuldb.com/?ctiid.337592	signaturepermissions-required
https://vuldb.com/?submit.717315	third-party-advisory
https://github.com/WebAssembly/binaryen/issues/8089	issue-tracking
https://github.com/WebAssembly/binaryen/pull/8092	issue-tracking
https://github.com/oneafter/1204/blob/main/hbf	exploit
https://github.com/WebAssembly/binaryen/commit/4f…	patch
https://github.com/WebAssembly/binaryen/	product

Impacted products

1 product

Vendor	Product	Version
WebAssembly	Binaryen	Affected: 125 cpe:2.3:a:webassembly:binaryen::::::::

Credits

Oneafter (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-14956",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-19T17:24:53.817424Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-19T18:00:41.794Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*"
          ],
          "product": "Binaryen",
          "vendor": "WebAssembly",
          "versions": [
            {
              "status": "affected",
              "version": "125"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Oneafter (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 4.3,
            "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T05:57:29.961Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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      },
      "references": [
        {
          "name": "VDB-337592 | WebAssembly Binaryen wasm-binary.cpp readExport heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.337592"
        },
        {
          "name": "VDB-337592 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.337592"
        },
        {
          "name": "Submit #717315 | WebAssembly binaryen 9a226ac Heap-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.717315"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/WebAssembly/binaryen/issues/8089"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/WebAssembly/binaryen/pull/8092"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/oneafter/1204/blob/main/hbf"
        },
        {
          "tags": [
            "patch"
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          "url": "https://github.com/WebAssembly/binaryen/commit/4f52bff8c4075b5630422f902dd92a0af2c9f398"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/WebAssembly/binaryen/"
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      ],
      "tags": [
        "x_open-source"
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          "time": "2025-12-19T00:00:00.000Z",
          "value": "Advisory disclosed"
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        {
          "lang": "en",
          "time": "2025-12-19T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-12-30T20:37:02.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "WebAssembly Binaryen wasm-binary.cpp readExport heap-based overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-14956",
    "datePublished": "2025-12-19T16:32:12.536Z",
    "dateReserved": "2025-12-19T08:38:51.694Z",
    "dateUpdated": "2026-02-24T05:57:29.961Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

ubuntu-cve-2025-14956

Vulnerability from osv_ubuntu

CVE-2025-14956 (GCVE-0-2025-14956)

Tags

Sightings

Nomenclature