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CVE-2025-52991

Estado: AplazadaBaja (3.2)—

The Nix, Lix, and Guix package managers default to using temporary build directories in a world-readable and world-writable location. This allows standard users to deceive the package manager into using directories with pre-existing content, potentially leading to unauthorized actions or data manipulation. This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

GNU — GuixAILIX — LIXAINixos — NIXAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-52991",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52991",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-27T15:21:20.719431Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 3.2,
          "attackVector": "LOCAL",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.4
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "NixOS",
          "product": "Nix",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.24.15",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "2.25.0",
              "lessThan": "2.26.4",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "2.27.0",
              "lessThan": "2.28.4",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "2.29.0",
              "lessThan": "2.29.1",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-06-27T14:15:41.253",
  "references": [
    {
      "url": "https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://labs.snyk.io",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lix.systems/blog/2025-06-24-lix-cves/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security-tracker.debian.org/tracker/CVE-2025-52991",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.snyk.io/vuln/?search=CVE-2025-52991",
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Nix, Lix, and Guix package managers default to using temporary build directories in a world-readable and world-writable location. This allows standard users to deceive the package manager into using directories with pre-existing content, potentially leading to unauthorized actions or data manipulation. This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b."
    },
    {
      "lang": "es",
      "value": "Los gestores de paquetes Nix, Lix y Guix utilizan por defecto directorios de compilación temporales en una ubicación legible y modificable para todos. Esto permite a los usuarios estándar engañar al gestor de paquetes para que utilice directorios con contenido preexistente, lo que podría provocar acciones no autorizadas o manipulación de datos. Esto afecta a Nix anteriores a las versiones 2.24.15, 2.26.4, 2.28.4 y 2.29.1; Lix anteriores a las versiones 2.91.2, 2.92.2 y 2.93.1; y Guix anteriores a la versión 1.4.0-38.0e79d5b."
    }
  ],
  "lastModified": "2026-06-17T09:37:25.700",
  "sourceIdentifier": "cve@mitre.org"
}