CVE-2021-41196

Name: CVE-2021-41196
Creator: NVD / NIST
Published: 2021-11-05T20:15:07.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2021-41196 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. TensorFlow is an open source platform for machine learning. In affected versions the Keras pooling layers can trigger a segfault if the size of the pool is 0 or if a dimension is negative. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

TensorFlow is an open source platform for machine learning. In affected versions the Keras pooling layers can trigger a segfault if the size of the pool is 0 or if a dimension is negative. This is due to the TensorFlow's implementation of pooling operations where the values in the sliding window are not checked to be strictly positive. 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.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.23%

13.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Google	Tensorflow	< 2.4.4
Google	Tensorflow	>= 2.5.0, < 2.5.2
Google	Tensorflow	>= 2.6.0, < 2.6.1

References

https://github.com/tensorflow/tensorflow/commit/12b1ff82b3f26ff8de17e58703231d5a02ef1b8bPatch, Third Party Advisory
https://github.com/tensorflow/tensorflow/issues/51936Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-m539-j985-hcr8Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/12b1ff82b3f26ff8de17e58703231d5a02ef1b8bPatch, Third Party Advisory
https://github.com/tensorflow/tensorflow/issues/51936Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-m539-j985-hcr8Exploit, Third Party Advisory

Timeline

Published: Nov 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41196?

How severe is CVE-2021-41196?

CVE-2021-41196 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41196?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41196?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST