CVE-2025-62603Network attack vector

Remote process termination via oversized vector allocation

Published Feb 3, 2026 · Updated Feb 3, 2026

Out-of-memory denial of service in eProsima Fast DDS before 2.6.11, 3.0.0 through 3.3.0, and 3.4.0 allows remote attackers to terminate processes. The readDataHolderSeq routine reads an attacker-controlled sequence count and resizes the DataHolderSeq vector to that count after an inadequate minimum-size bounds check. DDS Security must be enabled and the receiver must accept a crafted ParticipantGenericMessage over RTPS; the resulting allocation exhausts memory and terminates the hosting process.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-memory denial of service in eProsima Fast DDS before 2.6.11, 3.0.0 through 3.3.0, and 3.4.0 allows remote attackers to terminate processes. The readDataHolderSeq routine reads an attacker-controlled sequence count and resizes the DataHolderSeq vector to that count after an inadequate minimum-size bounds check. DDS Security must be enabled and the receiver must accept a crafted ParticipantGenericMessage over RTPS; the resulting allocation exhausts memory and terminates the hosting process.

The record

CVE
CVE-2025-62603
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
eProsima
Product
Fast DDS
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record 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 <2.6.11
  2. Affected versionversion=3.0.0 <3.3.1
  3. Affected versionversion=3.4.0 <3.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

eProsima · Fast DDSversion=0 <2.6.11; version=3.0.0 <3.3.1; version=3.4.0 <3.4.1

Published CVSS scores

1.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-125Out-of-bounds Read
T1499.004Application or System Exploitation Flaws

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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