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CVE-2026-53763

Estado: AnalizadaBaja (3.8)—

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.0.0 and prior to version 4.11.0, 32-bit integer overflows in OP-TEE core's AES-GCM implementation cause the authentication tag to be computed with incorrect bit-length values after processing more than 512 megabytes of payload or Additional Authenticated Data (AAD). Version 4.11.0 contains a patch. No known workarounds are available.

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 (1)

Trustedfirmware — Op-tee

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-53763",
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-07-07T14:10:42.847861Z"
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          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2
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  "affected": [
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      "source": "security-advisories@github.com",
      "affectedData": [
        {
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  "published": "2026-07-06T20:16:37.327",
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      "url": "https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fcm8-vjhf-6vqh",
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    }
  ],
  "lastModified": "2026-07-07T18:53:34.977",
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