HOMEVULNERABILITIESCVE-2025-62799
CRITICAL

CVE-2025-62799

CWE-122Published: February 3, 2026· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Risk Analysis

A heap buffer overflow in the Fast-DDS DATA_FRAG receive path allows an unauthenticated attacker to trigger a crash or potentially achieve remote code execution. The vulnerability is highly critical due to its 9.8 CVSS score and the ability for remote, low-complexity exploitation.

There is no public exploit known for this vulnerability, and it is not currently listed in the CISA KEV catalog.

Recommended Action

Upgrade to Fast DDS versions 3.4.1, 3.3.1, or 2.6.11 to resolve the buffer overflow issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-62799 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
eprosima1 product(s)
fast dds
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2025-62799
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-122
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 3, 2026

Related CVEs (CWE-122)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2025-62799 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.