CVE-2020-26266

Name: CVE-2020-26266
Creator: NVD / NIST
Published: 2020-12-10T23:15:12.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2020-26266 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In affected versions of TensorFlow under certain cases a saved model can trigger use of uninitialized values during code execution. This is caused by having tensor buffers be filled with the default value of the type but forgetting to default initialize the quantized floating point types in Eigen. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

In affected versions of TensorFlow under certain cases a saved model can trigger use of uninitialized values during code execution. This is caused by having tensor buffers be filled with the default value of the type but forgetting to default initialize the quantized floating point types in Eigen. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.24%

15.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Google	Tensorflow	< 1.15.5
Google	Tensorflow	>= 2.0.0, < 2.0.4
Google	Tensorflow	>= 2.1.0, < 2.1.3
Google	Tensorflow	>= 2.2.0, < 2.2.2
Google	Tensorflow	>= 2.3.0, < 2.3.2

References

https://github.com/tensorflow/tensorflow/commit/ace0c15a22f7f054abcc1f53eabbcb0a1239a9e2Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-qhxx-j73r-qpm2Exploit, Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/ace0c15a22f7f054abcc1f53eabbcb0a1239a9e2Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-qhxx-j73r-qpm2Exploit, Patch, Third Party Advisory

Timeline

Published: Dec 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26266?

How severe is CVE-2020-26266?

CVE-2020-26266 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26266?

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-2020-26266?

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

Scan your code now

Source: NVD / NIST