Heap out-of-bounds access via unchecked dimension multiplication
Published Feb 4, 2022 · Updated Apr 22, 2025
Integer overflow in TensorFlow TFLite before 2.5.3, 2.6.0 through 2.6.2, and 2.7.0 allows attackers to read or write heap memory. The sparse embedding lookup kernel multiplies attacker-controlled dimensions into embedding_size and lookup_size without checking for overflow before allocating and filling its output buffer. Reachability requires a consuming application to accept and evaluate an attacker-controlled TFLite model; published evidence does not establish code execution.
Summary
What happened
Integer overflow in TensorFlow TFLite before 2.5.3, 2.6.0 through 2.6.2, and 2.7.0 allows attackers to read or write heap memory. The sparse embedding lookup kernel multiplies attacker-controlled dimensions into embedding_size and lookup_size without checking for overflow before allocating and filling its output buffer. Reachability requires a consuming application to accept and evaluate an attacker-controlled TFLite model; published evidence does not establish code execution.
The record
- CVE
- CVE-2022-23559
- Published
- Feb 4, 2022
- Updated
- Apr 22, 2025
- Vendor
- Product
- TensorFlow
- Classifications
- CWE-190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 4, 2022CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=< 2.5.3
- Affected versionversion=>= 2.6.0, < 2.6.3
- Affected versionversion=>= 2.7.0, < 2.7.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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