High severity · published Dec 23, 2025
CVE-2025-65865
An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a Denial of Service (DoS) via a crafted input
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FD
Fast Dds · Eprosima
3.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-65865
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-65865
Third Party Advisory
https://gist.github.com/lkloliver/7aa48cb9fc7a1dd74cb595212bb69d33
Broken Link
https://github.com/lkloliver/poc/blob/main/Detail.md
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