CVE-2023-52309Public exploitNetwork attack vector

Process crash or memory disclosure via negative repeats

Published Jan 3, 2024 · Updated Sep 6, 2024

Heap buffer overflow in paddle.repeat_interleave in PaddlePaddle before 2.6.0 allows attackers to corrupt memory through invalid repeat values. RepeatsTensor2IndexTensor accepts negative repeat counts, adds them to index_size, and allocates an index vector from the invalid total. Reachability requires an application to pass attacker-controlled tensor parameters to the API; the overflow permits a process crash or memory disclosure.

CVSS severity8.2
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in paddle.repeat_interleave in PaddlePaddle before 2.6.0 allows attackers to corrupt memory through invalid repeat values. RepeatsTensor2IndexTensor accepts negative repeat counts, adds them to index_size, and allocates an index vector from the invalid total. Reachability requires an application to pass attacker-controlled tensor parameters to the API; the overflow permits a process crash or memory disclosure.

The record

CVE
CVE-2023-52309
Published
Jan 3, 2024
Updated
Sep 6, 2024
Vendor
PaddlePaddle
Product
PaddlePaddle
Classifications
CWE-120, CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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=0 <2.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PaddlePaddle · PaddlePaddleversion=0 <2.6.0

Published CVSS scores

9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2Baidu, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:L

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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787Out-of-bounds Write

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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