CVE-2021-41226

Heap OOB read in `SparseBinCount`

HIGH

7.1

CVSS Score

Published: November 5, 2021 at 08:20 PM UTC

Updated: June 17, 2026 at 04:08 AM UTC

2 products affected across 2 vendorsTensorflowTensorFlow

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Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

Description

TensorFlow is an open source platform for machine learning. In affected versions the implementation of `SparseBinCount` is vulnerable to a heap OOB access. This is because of missing validation between the elements of the `values` argument and the shape of the sparse output. 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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tensorflow · Google

95%

v < 2.4.42.5.0 ≤ v < 2.5.22.6.0 ≤ v < 2.6.1

Affected range stops below 2.4.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.5.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.1, so it looks safe — our inference, not a vendor statement

TensorFlow · Tensorflow

60%

v < 2.4.4v < 2.5.2v < 2.6.1

Affected range stops below 2.4.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.5.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/tensorflow/tensorflow/commit/f410212e373eb2aec4c9e60bf3702eba99a38aba

x_refsource_CONFIRMExploitPatchThird Party Advisory

Source: [email protected]

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-374m-jm66-3vj8

CVSS

7.1HIGHGitHub_M

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-125

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