CVE-2022-36027Public exploitNetwork attack vector

Python process crash via unknown quantization dimension

Published Sep 16, 2022 · Updated Apr 22, 2025

Improper input validation in TensorFlow's TFLite converter before 2.7.2, 2.8.0, and 2.9.0 allows remote attackers to crash the Python process. CastQuantizedTypeAttrFromExpressedType passes an unknown axis value to ResetAxisAndBroadcast instead of rejecting an uninferable per-axis quantization dimension. Triggering the flaw requires conversion of a model with mismatched transposed-convolution quantization axes, and the bounded result is termination of the converter's process.

CVSS severity5.9
Medium
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in TensorFlow's TFLite converter before 2.7.2, 2.8.0, and 2.9.0 allows remote attackers to crash the Python process. CastQuantizedTypeAttrFromExpressedType passes an unknown axis value to ResetAxisAndBroadcast instead of rejecting an uninferable per-axis quantization dimension. Triggering the flaw requires conversion of a model with mismatched transposed-convolution quantization axes, and the bounded result is termination of the converter's process.

The record

CVE
CVE-2022-36027
Published
Sep 16, 2022
Updated
Apr 22, 2025
Vendor
Google
Product
TensorFlow
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record 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=< 2.7.2
  2. Affected versionversion=>= 2.8.0, < 2.8.1
  3. Affected versionversion=>= 2.9.0, < 2.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google · TensorFlowversion=< 2.7.2; version=>= 2.8.0, < 2.8.1; version=>= 2.9.0, < 2.9.1

Published CVSS scores

5.9GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

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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