CVE-2021-29539

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

TensorFlow is an end-to-end open source platform for machine learning. Calling `tf.raw_ops.ImmutableConst`(https://www.tensorflow.org/api_docs/python/tf/raw_ops/ImmutableConst) with a `dtype` of `tf.resource` or `tf.variant` results in a segfault in the implementation as code assumes that the tensor contents are pure scalars. We have patched the issue in 4f663d4b8f0bec1b48da6fa091a7d29609980fa4 and will release TensorFlow 2.5.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved. If using `tf.raw_ops.ImmutableConst` in code, you can prevent the segfault by inserting a filter for the `dtype` argument.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-681

Affected software

VendorProductVersions
tensorflowtensorflow< 2.1.4; >= 2.2.0, < 2.2.3; >= 2.3.0, < 2.3.3; >= 2.4.0, < 2.4.2

References

Timeline

Published
May 14, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-29539: Medium severity, CVSS 5.5 | Vulnix