CVE-2021-37680: google tensorflow Divide By Zero
Vulnerability summary
CVE-2021-37680 is a medium (CVSS 5.5) Divide By Zero vulnerability in google tensorflow. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 12-08-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions the implementation of fully connected layers in TFLite is [vulnerable to a division by zero error](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/lite/kernels/fully_connected.cc#L226). We have patched the issue in GitHub commit 718721986aa137691ee23f03638867151f74935f. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · PypiEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.15%
Chance of exploitation in the next 30 days
Percentile
4%
Versus all other CVEs
30-day change
0.00 pp
From 0.15% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
PyPI3 products
- tensorflow< 2.3.4 | ≥ 2.5.0, < 2.5.1 | < 718721986aa137691ee23f03638867151f74935f | ≥ 2.4.0, < 2.4.3
- tensorflow-cpu< 2.3.4 | ≥ 2.5.0, < 2.5.1 | < 718721986aa137691ee23f03638867151f74935f | ≥ 2.4.0, < 2.4.3
- tensorflow-gpu< 2.3.4 | ≥ 2.5.0, < 2.5.1 | < 718721986aa137691ee23f03638867151f74935f | ≥ 2.4.0, < 2.4.3
Google1 product
- tensorflow≥ 2.3.0, < 2.3.4 | ≥ 2.4.0, < 2.4.3 | 2.5.0 | 2.6.0:rc0 | 2.6.0:rc1 | 2.6.0:rc2
Tensorflow1 product
- tensorflow≥ 2.5.0, < 2.5.1 | ≥ 2.4.0, < 2.4.3 | < 2.3.4
3 vendors · 5 products
References
8 links- github.com/tensorflow/tensorflow/security/advisories/GHSA-cfpj-3q4c-jhvrX Refsource CONFIRMWEBAdvisoryThird Party Advisory
- github.com/tensorflow/tensorflow/commit/718721986aa137691ee23f03638867151f74935fX Refsource MISCWEBFIXPatchThird Party Advisory