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CVE-2025-62799

Eprosima Fast Dds buffer overflow

9.8 CRITICALEPSS 0.55%
  1. Published3 Feb 2026

Description

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a heap buffer overflow exists in the Fast-DDS DATA_FRAG receive path. An un authenticated sender can transmit a single malformed RTPS DATA_FRAG packet where `fragmentSize` and `sampleSize` are craft ed to violate internal assumptions. Due to a 4-byte alignment step during fragment metadata initialization, the code write s past the end of the allocated payload buffer, causing immediate crash (DoS) and potentially enabling memory corruption ( RCE risk). Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Eprosima Fast Dds≥ 3.0.0 < 3.3.1 · < 2.6.11 · 3.4.0
Debian Linux11.0 · 12.0 · 13.0

Remediation

Fixed in
Eprosima Fast Dds≥ 3.3.1

References

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Frequently asked

Is CVE-2025-62799 being actively exploited?

CVE-2025-62799 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.55%.

How severe is CVE-2025-62799?

CVE-2025-62799 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.55% probability of exploitation.

Which products are affected by CVE-2025-62799?

Affected products include Eprosima Fast Dds, Debian Linux.

How do I fix CVE-2025-62799?

Upgrade affected software to a fixed version, for example Eprosima Fast Dds 3.3.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-62799 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.