FKIE_CVE-2025-47154

Vulnerability from fkie_nvd - Published: 2025-05-01 08:15 - Updated: 2026-06-17 09:27
Severity
9.0 (Critical) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."
References
cve@mitre.orghttps://github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669
cve@mitre.orghttps://jessie.cafe/posts/pwning-ladybirds-libjs/
cve@mitre.orghttps://news.ycombinator.com/item?id=43852096
134c704f-9b21-4f2e-91b3-4a467353bcc0https://jessie.cafe/posts/pwning-ladybirds-libjs/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Ladybird",
          "vendor": "Ladybird",
          "versions": [
            {
              "lessThan": "f5a670421954fc7130c3685b713c621b29516669",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says \"Ladybird is in a pre-alpha state, and only suitable for use by developers.\""
    },
    {
      "lang": "es",
      "value": "LibJS en Ladybird anterior a f5a6704 gestiona incorrectamente la liberaci\u00f3n del vector al que hace referencia arguments_list, lo que provoca un use-after-free y permite a atacantes remotos ejecutar c\u00f3digo arbitrario mediante un archivo .js manipulado. NOTA: El README de GitHub indica que \u00abLadybird se encuentra en estado pre-alfa y solo es apto para desarrolladores\u00bb."
    }
  ],
  "id": "CVE-2025-47154",
  "lastModified": "2026-06-17T09:27:31.200",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 6.0,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-47154",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-01T14:38:04.914838Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-05-01T08:15:17.950",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://jessie.cafe/posts/pwning-ladybirds-libjs/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://news.ycombinator.com/item?id=43852096"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://jessie.cafe/posts/pwning-ladybirds-libjs/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-820"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



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