{"id":"CVE-2026-12387","title":"Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing op…","summary":"Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing op…","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-416"],"vendor":"Arm Ltd","product":"Bifrost GPU Kernel Driver","affected":["bifrost_gpu_kernel_driver >= r41p0 <= r49p5","bifrost_gpu_kernel_driver >= r50p0 <= r51p0","bifrost_gpu_kernel_driver >= r54p1 <= r54p2","valhall_gpu_kernel_driver >= r41p0 <= r49p5","valhall_gpu_kernel_driver >= r50p0 <= r54p3","valhall_gpu_kernel_driver r55p0","arm_5th_gen_gpu_architecture_kernel_driver >= r41p0 <= r49p5","arm_5th_gen_gpu_architecture_kernel_driver >= r50p0 <= r54p3","arm_5th_gen_gpu_architecture_kernel_driver r55p0"],"published":"2026-09-08","updated":"2026-09-10","sourceUpdated":"2026-09-10T18:17:54.947","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-12387","references":[{"url":"https://support.arm.com/documentation/111552/1-0/?lang=en","label":"arm-security@arm.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T17:57:19.331224Z"},"epss":0.00109,"epssPercentile":0.01135,"ingestedAt":"2026-09-08T15:33:26.985Z","slug":"CVE-2026-12387","body":"## Overview\n\nUse After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":201462,"id":"CVE-2026-12387","ts":1789399467508,"field":"cvss","old":null,"new":"5.1"},{"seq":201461,"id":"CVE-2026-12387","ts":1789399467508,"field":"severity","old":"none","new":"medium"},{"seq":200196,"id":"CVE-2026-12387","ts":1789396934910,"field":"cvss","old":"5.1","new":null},{"seq":200195,"id":"CVE-2026-12387","ts":1789396934910,"field":"severity","old":"medium","new":"none"},{"seq":198119,"id":"CVE-2026-12387","ts":1789387978233,"field":"cvss","old":null,"new":"5.1"},{"seq":198118,"id":"CVE-2026-12387","ts":1789387978233,"field":"severity","old":"none","new":"medium"},{"seq":195913,"id":"CVE-2026-12387","ts":1789383310975,"field":"cvss","old":"5.1","new":null},{"seq":195912,"id":"CVE-2026-12387","ts":1789383310975,"field":"severity","old":"medium","new":"none"},{"seq":194842,"id":"CVE-2026-12387","ts":1789380274695,"field":"cvss","old":null,"new":"5.1"},{"seq":194841,"id":"CVE-2026-12387","ts":1789380274695,"field":"severity","old":"none","new":"medium"},{"seq":193629,"id":"CVE-2026-12387","ts":1789378171415,"field":"cvss","old":"5.1","new":null},{"seq":193628,"id":"CVE-2026-12387","ts":1789378171415,"field":"severity","old":"medium","new":"none"},{"seq":192416,"id":"CVE-2026-12387","ts":1789376195247,"field":"cvss","old":null,"new":"5.1"},{"seq":192415,"id":"CVE-2026-12387","ts":1789376195247,"field":"severity","old":"none","new":"medium"},{"seq":191203,"id":"CVE-2026-12387","ts":1789373040387,"field":"cvss","old":"5.1","new":null},{"seq":191202,"id":"CVE-2026-12387","ts":1789373040387,"field":"severity","old":"medium","new":"none"},{"seq":189988,"id":"CVE-2026-12387","ts":1789369097404,"field":"cvss","old":null,"new":"5.1"},{"seq":189987,"id":"CVE-2026-12387","ts":1789369097404,"field":"severity","old":"none","new":"medium"},{"seq":188775,"id":"CVE-2026-12387","ts":1789367990950,"field":"cvss","old":"5.1","new":null},{"seq":188774,"id":"CVE-2026-12387","ts":1789367990950,"field":"severity","old":"medium","new":"none"},{"seq":187558,"id":"CVE-2026-12387","ts":1789364953093,"field":"cvss","old":null,"new":"5.1"},{"seq":187557,"id":"CVE-2026-12387","ts":1789364953093,"field":"severity","old":"none","new":"medium"},{"seq":186345,"id":"CVE-2026-12387","ts":1789362910180,"field":"cvss","old":"5.1","new":null},{"seq":186344,"id":"CVE-2026-12387","ts":1789362910180,"field":"severity","old":"medium","new":"none"},{"seq":185131,"id":"CVE-2026-12387","ts":1789360939378,"field":"cvss","old":null,"new":"5.1"},{"seq":185130,"id":"CVE-2026-12387","ts":1789360939378,"field":"severity","old":"none","new":"medium"},{"seq":183918,"id":"CVE-2026-12387","ts":1789357852649,"field":"cvss","old":"5.1","new":null},{"seq":183917,"id":"CVE-2026-12387","ts":1789357852649,"field":"severity","old":"medium","new":"none"},{"seq":182170,"id":"CVE-2026-12387","ts":1789354065067,"field":"cvss","old":null,"new":"5.1"},{"seq":182169,"id":"CVE-2026-12387","ts":1789354065067,"field":"severity","old":"none","new":"medium"},{"seq":180963,"id":"CVE-2026-12387","ts":1789352880233,"field":"cvss","old":"5.1","new":null},{"seq":180962,"id":"CVE-2026-12387","ts":1789352880233,"field":"severity","old":"medium","new":"none"},{"seq":179756,"id":"CVE-2026-12387","ts":1789349960150,"field":"cvss","old":null,"new":"5.1"},{"seq":179755,"id":"CVE-2026-12387","ts":1789349960150,"field":"severity","old":"none","new":"medium"},{"seq":178549,"id":"CVE-2026-12387","ts":1789347715264,"field":"cvss","old":"5.1","new":null},{"seq":178548,"id":"CVE-2026-12387","ts":1789347715264,"field":"severity","old":"medium","new":"none"},{"seq":177342,"id":"CVE-2026-12387","ts":1789346146750,"field":"cvss","old":null,"new":"5.1"},{"seq":177341,"id":"CVE-2026-12387","ts":1789346146750,"field":"severity","old":"none","new":"medium"},{"seq":176135,"id":"CVE-2026-12387","ts":1789342654074,"field":"cvss","old":"5.1","new":null},{"seq":176134,"id":"CVE-2026-12387","ts":1789342654074,"field":"severity","old":"medium","new":"none"},{"seq":175921,"id":"CVE-2026-12387","ts":1789342263500,"field":"cvss","old":null,"new":"5.1"},{"seq":175920,"id":"CVE-2026-12387","ts":1789342263500,"field":"severity","old":"none","new":"medium"},{"seq":175459,"id":"CVE-2026-12387","ts":1789338288726,"field":"cvss","old":"5.1","new":null},{"seq":175458,"id":"CVE-2026-12387","ts":1789338288726,"field":"severity","old":"medium","new":"none"},{"seq":174254,"id":"CVE-2026-12387","ts":1789334565066,"field":"cvss","old":null,"new":"5.1"},{"seq":174253,"id":"CVE-2026-12387","ts":1789334565066,"field":"severity","old":"none","new":"medium"},{"seq":173049,"id":"CVE-2026-12387","ts":1789333144754,"field":"cvss","old":"5.1","new":null},{"seq":173048,"id":"CVE-2026-12387","ts":1789333144754,"field":"severity","old":"medium","new":"none"},{"seq":171863,"id":"CVE-2026-12387","ts":1789330852708,"field":"cvss","old":null,"new":"5.1"},{"seq":171862,"id":"CVE-2026-12387","ts":178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