CVE-2022-23566Network attack vector

Memory corruption via unchecked Grappler output index

Published Feb 4, 2022 · Updated Apr 22, 2025

Heap out-of-bounds write in Grappler in Google TensorFlow affected releases allows remote authenticated users to corrupt process memory. SetUnknownShape passes an attacker-controlled output_port to InferenceContext::set_output without validating it against num_outputs, causing an indexed write beyond outputs_. Reachability requires an application to invoke Grappler on an attacker-controlled graph; the primitive can corrupt memory or crash the TensorFlow process.

CVSS severity8.8
High
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap out-of-bounds write in Grappler in Google TensorFlow affected releases allows remote authenticated users to corrupt process memory. SetUnknownShape passes an attacker-controlled output_port to InferenceContext::set_output without validating it against num_outputs, causing an indexed write beyond outputs_. Reachability requires an application to invoke Grappler on an attacker-controlled graph; the primitive can corrupt memory or crash the TensorFlow process.

The record

CVE
CVE-2022-23566
Published
Feb 4, 2022
Updated
Apr 22, 2025
Vendor
Google
Product
TensorFlow
Classifications
CWE-787
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 4, 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=< 2.5.3
  2. Affected versionversion=>= 2.6.0, < 2.6.3
  3. Affected versionversion=>= 2.7.0, < 2.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Google · TensorFlowversion=< 2.5.3; version=>= 2.6.0, < 2.6.3; version=>= 2.7.0, < 2.7.1

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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