CVE-2026-45614

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{"affected": [{"affectedData": [{"product": "optee_os", "vendor": "OP-TEE", "versions": [{"status": "affected", "version": "< 4.11.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*", "matchCriteriaId": "7D076F24-9D13-4062-8D47-6ADB70693935", "versionEndIncluding": "4.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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. Prior to version 4.11.0, on many of the ECDH shared secret paths, the public key isn't verified to be a point on the correct curve. By passing approximately 30-40 crafted public keys to OP-TEE, the private key can be reconstructed by a normal world attacker. When calling TEE_DeriveKey the public key is provided with full X and Y values, but the (X, Y) point might not satisfy the `Y^2 == X^3 + aX + b mod P` math for the specific curve that is used. When those public keys aren't rejected, the attacker can select public keys such that each DeriveKey call will leak `d % r` where `d` is the private key and `r` comes from the relationship between the correct curve and the attacker selected curve. With enough leaked data the Chinese remainder theorem can be used to recover the full private key. Version 4.11.0 fixes the issue."}, {"lang": "es", "value": "OP-TEE es un Entorno de Ejecuci\u00f3n Confiable (TEE) dise\u00f1ado como compa\u00f1ero de un kernel de Linux no seguro ejecut\u00e1ndose en n\u00facleos Arm; Cortex-A usando la tecnolog\u00eda TrustZone. Antes de la versi\u00f3n 4.11.0, en muchas de las rutas de secreto compartido ECDH, la clave p\u00fablica no se verifica para ser un punto en la curva correcta. Al pasar aproximadamente 30-40 claves p\u00fablicas manipuladas a OP-TEE, la clave privada puede ser reconstruida por un atacante del mundo normal. Al llamar a TEE_DeriveKey, la clave p\u00fablica se proporciona con valores X e Y completos, pero el punto (X, Y) podr\u00eda no satisfacer las matem\u00e1ticas 'Y^2 == X^3 + aX + b mod P' para la curva espec\u00edfica que se utiliza. Cuando esas claves p\u00fablicas no son rechazadas, el atacante puede seleccionar claves p\u00fablicas de tal manera que cada llamada a DeriveKey filtrar\u00e1 'd % r' donde 'd' es la clave privada y 'r' proviene de la relaci\u00f3n entre la curva correcta y la curva seleccionada por el atacante. Con suficientes datos filtrados, el teorema chino del resto puede usarse para recuperar la clave privada completa. La versi\u00f3n 4.11.0 corrige el problema."}], "id": "CVE-2026-45614", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45614", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-03T19:29:20.663892Z", "version": "2.0.3"}}]}, "published": "2026-06-03T19:16:38.510", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://github.com/OP-TEE/optee_os/security/advisories/GHSA-g6qf-hwf7-mg9h"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://github.com/OP-TEE/optee_os/security/advisories/GHSA-g6qf-hwf7-mg9h"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.11.0)"}}], "enrichment": {"confidence": 97.0, "confidence_source": "matching", "scores": [{"score": 97.0, "source": "matching"}]}, "original": {"product": "optee_os", "source": "cna", "vendor": "OP-TEE"}, "product": "op-tee_os", "vendor": "op-tee"}], "created": "2026-06-03T21:00:06.987765+00:00", "updated": "2026-06-05T08:30:24.074941+00:00", "vendors": ["op-tee", "op-tee$PRODUCT$op-tee_os"]}