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    "cveMetadata": {
        "cveId": "CVE-2026-71968",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-08T16:43:04.178Z",
        "datePublished": "2026-08-10T18:15:10.619Z",
        "dateUpdated": "2026-08-14T16:51:54.337Z"
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                "dateUpdated": "2026-08-14T16:51:54.337Z"
            },
            "title": "OP-TEE OS 4.10.0 Use-After-Free via Trusted Application Loader TA_FLAG_CONCURRENT",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OP-TEE OS through 4.10.0, fixed in commit 8794043, contains a use-after-free vulnerability in the Trusted Application loader that allows attackers with the ability to load a signed Trusted Application to corrupt secure-world kernel memory by setting the TA_FLAG_CONCURRENT flag in a user TA signed header. Attackers can cause two concurrent sessions to operate on the same shared context without locking, corrupting the uctx->vm_info.regions list during memref parameter mapping and unmapping to free vm_region nodes still in use, resulting in a use-after-free in S-EL1 secure-world kernel memory."
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            ],
            "tags": [
                "x_open-source"
            ],
            "datePublic": "2026-07-30T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-416",
                            "description": "Use After Free",
                            "type": "CWE"
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                        {
                            "lang": "en",
                            "cweId": "CWE-362",
                            "description": "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')",
                            "type": "CWE"
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                }
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                    "vendor": "OP-TEE",
                    "product": "optee_os",
                    "packageURL": "pkg:github/OP-TEE/optee_os",
                    "repo": "https://github.com/OP-TEE/optee_os",
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                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThanOrEqual": "4.10.0"
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                            "status": "unaffected",
                            "version": "8794043c4065c26a2b8b1313794ba5ba5f06d296",
                            "versionType": "git"
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                        "attackRequirements": "NONE",
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                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
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                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "baseScore": 8.4,
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                {
                    "url": "https://github.com/OP-TEE/optee_os/pull/7900",
                    "name": "Pull Request",
                    "tags": [
                        "issue-tracking"
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                    "url": "https://github.com/OP-TEE/optee_os/commit/8794043c4065c26a2b8b1313794ba5ba5f06d296",
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                    "tags": [
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            "credits": [
                {
                    "lang": "en",
                    "value": "Argus Systems - ByteRay Ltd.",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
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