CVE-2021-29614Public exploit

Interpreter crash via oversized output-pointer advance

Published May 14, 2021 · Updated Aug 3, 2024

Out-of-bounds write in Google TensorFlow allows local users to crash the Python interpreter through a crafted tf.io.decode_raw call. The DecodePaddedRawOp kernel advances an output pointer by fixed_length typed elements after copying at most fixed_length bytes, causing periodic writes beyond the allocated tensor. Reachability requires executing a graph that combines fixed_length with a datatype wider than one byte; affected branches are before 2.1.4, 2.2.0 through 2.2.2, 2.3.0 through 2.3.2, and 2.4.0 through 2.4.1.

CVSS severity7.1
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Google TensorFlow allows local users to crash the Python interpreter through a crafted tf.io.decode_raw call. The DecodePaddedRawOp kernel advances an output pointer by fixed_length typed elements after copying at most fixed_length bytes, causing periodic writes beyond the allocated tensor. Reachability requires executing a graph that combines fixed_length with a datatype wider than one byte; affected branches are before 2.1.4, 2.2.0 through 2.2.2, 2.3.0 through 2.3.2, and 2.4.0 through 2.4.1.

The record

CVE
CVE-2021-29614
Published
May 14, 2021
Updated
Aug 3, 2024
Vendor
Google
Product
TensorFlow
Classifications
CWE-787, CWE-665
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=< 2.1.4
  2. Affected versionversion=>= 2.2.0, < 2.2.3
  3. Affected versionversion=>= 2.3.0, < 2.3.3
  4. Affected versionversion=>= 2.4.0, < 2.4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · TensorFlowversion=< 2.1.4; version=>= 2.2.0, < 2.2.3; version=>= 2.3.0, < 2.3.3; version=>= 2.4.0, < 2.4.2

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
7.1GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-665Improper Initialization

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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