CVE-2023-33976Network attack vector

Service crash via unchecked tensor rank

Published Jul 30, 2024 · Updated Aug 2, 2024

Denial of service in Google TensorFlow before 2.13.0 allows remote attackers to crash an application via a non-rank-2 tensor. The UpperBound kernel relies on bypassable shape-function validation and accepts values or sorted_inputs tensors that are not rank 2 before reading their dimensions. The application must pass an attacker-controlled tensor to this operation; successful exploitation terminates the process without altering or disclosing data.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Google TensorFlow before 2.13.0 allows remote attackers to crash an application via a non-rank-2 tensor. The UpperBound kernel relies on bypassable shape-function validation and accepts values or sorted_inputs tensors that are not rank 2 before reading their dimensions. The application must pass an attacker-controlled tensor to this operation; successful exploitation terminates the process without altering or disclosing data.

The record

CVE
CVE-2023-33976
Published
Jul 30, 2024
Updated
Aug 2, 2024
Vendor
Google
Product
TensorFlow
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.13.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google · TensorFlowversion=< 2.13.0

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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