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CVE-2025-12779

Estado: AplazadaAlta (8.8)—

Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under certain circumstances, a local user may be able to extract another local user's authentication token from the shared client machine and access their WorkSpace.

To mitigate this issue, users should upgrade to the Amazon WorkSpaces client for Linux version 2025.0 or later.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L y PR:L indican escalada local; CWE-497 (exposición de información sensible) y tokens de autenticación expuestos permiten acceso a WorkSpaces ajenos. Credenciales y sesiones comprometidas.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Password PoliciesUser TrainingThreat Intelligence ProgramRestrict File and Directory PermissionsMulti-factor AuthenticationExecution Prevention

Tecnologías afectadas (1)

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

Amazon — Workspaces Client LinuxAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2025-12779",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-12779",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-11-07T04:56:10.991021Z"
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "product": "Amazon WorkSpaces",
          "versions": [
            {
              "status": "unaffected",
              "version": "2025.0"
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          ],
          "platforms": [
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          "defaultStatus": "unaffected"
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  "published": "2025-11-05T22:15:33.010",
  "references": [
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      "url": "https://aws.amazon.com/security/security-bulletins/AWS-2025-025/",
      "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5"
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    {
      "url": "https://docs.aws.amazon.com/workspaces/latest/userguide/amazon-workspaces-linux-client.html#linux-release-notes",
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "lang": "en",
      "value": "Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under certain circumstances, a local user may be able to extract another local user's authentication token from the shared client machine and access their WorkSpace.\n\nTo mitigate this issue, users should upgrade to the Amazon WorkSpaces client for Linux version 2025.0 or later."
    }
  ],
  "lastModified": "2026-06-17T08:32:56.667",
  "sourceIdentifier": "ff89ba41-3aa1-4d27-914a-91399e9639e5"
}