CVE-2022-21739Public exploitNetwork attack vector

Application crash via empty QuantizedMaxPool bounds

Published Feb 3, 2022 · Updated May 5, 2025

Null pointer dereference in TensorFlow allows remote authenticated users to crash applications through a crafted QuantizedMaxPool operation. QuantizedMaxPoolingOp reads element zero from min_input and max_input without first requiring each tensor to contain exactly one scalar element. An attacker must be able to submit TensorFlow operations with an empty min_input or max_input tensor; the resulting null reference interrupts the hosting process.

CVSS severity6.5
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in TensorFlow allows remote authenticated users to crash applications through a crafted QuantizedMaxPool operation. QuantizedMaxPoolingOp reads element zero from min_input and max_input without first requiring each tensor to contain exactly one scalar element. An attacker must be able to submit TensorFlow operations with an empty min_input or max_input tensor; the resulting null reference interrupts the hosting process.

The record

CVE
CVE-2022-21739
Published
Feb 3, 2022
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 3, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:P
6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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