CVE-2023-52427Public exploitNetwork attack vector

Process crash via oversized DataWriter sample limit

Published Feb 11, 2024 · Updated Aug 2, 2024

Denial of service in OpenDDS through 3.27 allows attackers to crash a process by creating a DataWriter with oversized max_samples. WriteDataContainer derives a huge chunk count from max_samples, and Cached_Allocator_With_Overflow passes a null allocation to Free_List::add for dereference. Triggering requires an application to configure a sample limit larger than available memory; the vendor disputes this as unsupported use.

CVSS severity7.5
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenDDS through 3.27 allows attackers to crash a process by creating a DataWriter with oversized max_samples. WriteDataContainer derives a huge chunk count from max_samples, and Cached_Allocator_With_Overflow passes a null allocation to Free_List::add for dereference. Triggering requires an application to configure a sample limit larger than available memory; the vendor disputes this as unsupported use.

The record

CVE
CVE-2023-52427
Published
Feb 11, 2024
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application 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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