What’s Vulnerable › Vulnerabilities

CVE-2021-41205: Heap OOB read in all `tf.raw_ops.QuantizeAndDequantizeV*` ops

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-05 · updated 2026-06-17
• Weakness: CWE-125

Description

TensorFlow is an open source platform for machine learning. In affected versions the shape inference functions for the `QuantizeAndDequantizeV*` operations can trigger a read outside of bounds of heap allocated array. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Affected products

• tensorflow: before 2.4.4; from 2.5.0 before 2.5.2; from 2.6.0 before 2.6.1 — fixed in 2.4.4, 2.5.2, 2.6.1

How to fix

Upgrade to a fixed version: tensorflow 2.4.4, 2.5.2, 2.6.1. Check the vendor advisory for mitigations.

References

• https://github.com/tensorflow/tensorflow/commit/7cf73a2274732c9d82af51c2bc2cf90d13cd7e6d
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-49rx-x2rw-pc6f
• https://github.com/tensorflow/tensorflow/commit/7cf73a2274732c9d82af51c2bc2cf90d13cd7e6d
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-49rx-x2rw-pc6f

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