CVE-2025-67111Network attack vector

Remote crash via DATA_FRAG length underflow

Published Dec 23, 2025 · Updated Dec 23, 2025

Integer underflow in OpenDDS before 3.33.0 allows remote attackers to crash RTPS applications with a crafted DATA_FRAG submessage. RtpsSampleHeader::init subtracts the parsed byte count from the declared submessage extent without first ensuring the subtraction is nonnegative, converting the result to a huge unsigned length. Reachability requires an application to accept RTPS traffic; successful exploitation causes a segmentation fault and service interruption only.

CVSS severity7.5
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in OpenDDS before 3.33.0 allows remote attackers to crash RTPS applications with a crafted DATA_FRAG submessage. RtpsSampleHeader::init subtracts the parsed byte count from the declared submessage extent without first ensuring the subtraction is nonnegative, converting the result to a huge unsigned length. Reachability requires an application to accept RTPS traffic; successful exploitation causes a segmentation fault and service interruption only.

The record

CVE
CVE-2025-67111
Published
Dec 23, 2025
Updated
Dec 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 23, 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?

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

7.5CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499Endpoint Denial of Service

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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