{"id":"CVE-2023-25663","aliases":["BIT-tensorflow-2023-25663","GHSA-64jg-wjww-7c5w","PYSEC-2026-1957","PYSEC-2026-3116","PYSEC-2026-3282"],"url":"https://o3.security/vulnerability/CVE-2023-25663","summary":"TensorFlow has Null Pointer Error in TensorArrayConcatV2","details":"### Impact\nWhen ctx->step_containter() is a null ptr, the Lookup function will be executed with a null pointer.\n```python\nimport tensorflow as tf\ntf.raw_ops.TensorArrayConcatV2(handle=['a', 'b'], flow_in = 0.1, dtype=tf.int32, element_shape_except0=1)\n```\n\n### Patches\nWe have patched the issue in GitHub commit [239139d2ae6a81ae9ba499ad78b56d9b2931538a](https://github.com/tensorflow/tensorflow/commit/239139d2ae6a81ae9ba499ad78b56d9b2931538a).\n\nThe fix will be included in TensorFlow 2.12.0. We will also cherrypick this commit on TensorFlow 2.11.1\n\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n\n### Attribution\nThis vulnerability has been reported by Yu Tian","published":"2023-03-24T23:40:59.362Z","modified":"2026-08-12T13:33:57.854627Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.11.1"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.11.1"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.11.1"}],"fix":{"url":"https://github.com/tensorflow/tensorflow/commit/239139d2ae6a81ae9ba499ad78b56d9b2931538a","label":"tensorflow/tensorflow@239139d"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25663.json"},{"type":"ADVISORY","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-64jg-wjww-7c5w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25663"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/239139d2ae6a81ae9ba499ad78b56d9b2931538a"},{"type":"PACKAGE","url":"https://github.com/tensorflow/tensorflow"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T13:33:57.854627Z"}}