MediumVulnerability

CVE-2020-15198: Tensorflow SparseCountSparseOutput out-of-bounds read via unvalidated shape

Source: NVD(opens in a new tab)
Identifier: CVE-2020-15198
Published: September 25, 2020
Record updated: October 10, 2026

Affected: tensorflow = 2.3.0
tensorflow-cpu = 2.3.0
tensorflow-gpu = 2.3.0
Fixed in: 2.3.1
tensorflow 2.3.1 released September 24, 2020, 1 day before disclosure
tensorflow-cpu 2.3.1 released September 24, 2020, 1 day before disclosure
tensorflow-gpu 2.3.1 released September 24, 2020, 1 day before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.5%

Summary

CVE-2020-15198 affects TensorFlow before version 2.3.1. The `SparseCountSparseOutput` implementation does not check that the `indices` and `values` tensors have matching shapes, and because both are read in parallel, a mismatch can cause accesses outside the bounds of heap-allocated buffers.

Mitigation

Fixed in TensorFlow version 2.3.1, patched in commit 3cbb917b4714766030b28eba9fb41bb97ce9ee02.

Details

Scores and exploitation

CVSS score: 5.4(medium)
Patch available: Yes
EPSS: 0.5%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-119
CWE-122
CWE-119
Attack pattern (CAPEC): CAPEC-100

Affected

Packages: tensorflow@= 2.3.0 (fixed: 2.3.1)
tensorflow-cpu@= 2.3.0 (fixed: 2.3.1)
tensorflow-gpu@= 2.3.0 (fixed: 2.3.1)
Vendors: Google

Classification

Attack type: Denial of service
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2020-15198

First tracked: February 15, 2026 at 08:38 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 93% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

tensorflowPyPINo LLM dependency detected · 26 tracked dependents
tensorflow-gpuPyPINo LLM dependency detected · 2 tracked dependents

Summary

Mitigation

Affected packages in the Exposure Registry

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