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CVE-2025-62601

FastDDS has heap buffer overflow in readString via Manipulated DATA Submessage when DDS Security is enabled

1.7 Low

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.58%Up 0.6 points since Feb 4, 2026
90%50%10%1%

What each source reports

CVE List Score used 1.7

FastDDS has heap buffer overflow in readString via Manipulated DATA Submessage when DDS Security is enabled

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
CVE-2025-62601
CVSS 4.0
1.7 LowCVSS: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
Weakness
CWE-122
Updated
2026-11-02
EUVDEUVD-2025-206631 1.7

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
EUVD-2025-206631
CVSS 4.0
1.7 LowCVSS: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
Updated
2026-11-02
NVD 1.7

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
CVE-2025-62601
CVSS 4.0
1.7 LowCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-122, CWE-787
Updated
2026-11-02
OSV 1.7

FastDDS has heap buffer overflow in readString via Manipulated DATA Submessage when DDS Security is enabled

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
CVE-2025-62601
CVSS 4.0
1.7 LowCVSS: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
Weakness
CWE-122
Updated
2026-11-02
OSVDEBIAN-CVE-2025-62601 7.5

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
DEBIAN-CVE-2025-62601
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2025-62601 1.7

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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes a heap buffer overflow, resulting in remote termination of Fast-DDS. If the fields of PID_IDENTITY_TOKEN or PID_PERMISSIONS_TOKEN in the DATA Submessage — specifically by tampering with the str_size value read by readString (called from readBinaryProperty) — are modified, a 32-bit integer overflow can occur, causing std::vector::resize to use an attacker-controlled size and quickly trigger heap buffer overflow and remote process term ination. Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.

Record
UBUNTU-CVE-2025-62601
CVSS 4.0
1.7 LowCVSS: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
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
fastdds
Debian:12
All versions, plus listed versions
2.10.1+ds-12.10.1+ds-22.10.1+ds-32.11.2+ds-12.11.2+ds-2
Show 27 moreShow less
2.11.2+ds-32.11.2+ds-42.11.2+ds-52.11.2+ds-62.11.2+ds-6.12.11.2+ds-6.1~exp12.14.0+ds-12.14.0+ds-22.14.0+ds-32.14.0+ds-42.14.1+ds-12.14.2+ds-12.14.3+ds-12.9.1+ds-12.9.1+ds-1+deb12u12.9.1+ds-1+deb12u23.0.0+ds-13.0.0+ds-23.0.0+ds-33.0.1+ds-13.1.0+ds-13.1.0+ds-23.1.2+ds-13.3.0+ds-13.3.0+ds-23.3.0+ds-33.6.1+ds-1
None known
fastdds
Debian:13
All versions, plus listed versions
3.1.2+ds-13.3.0+ds-13.3.0+ds-23.3.0+ds-33.6.1+ds-1
None known
fastdds
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
2.1.0+ds-92.4.1+ds-12.5.0+ds-32.5.0+ds-3ubuntu0.1~esm1
None known
fastdds
Ubuntu:24.04:LTS
All versions, plus listed versions
2.10.1+ds-32.11.2+ds-62.11.2+ds-6ubuntu12.11.2+ds-6.1build22.11.2+ds-6.1build3
None known
fastdds
Ubuntu:25.10
All versions, plus listed versions
3.1.2+ds-13.1.2+ds-1build1
None known
fastdds
Ubuntu:26.10
All versions, plus listed versions
3.3.0+ds-3ubuntu13.3.0+ds-3ubuntu3
None known
fastdds
Ubuntu:26.04:LTS
All versions, plus listed versions
3.1.2+ds-1build13.3.0+ds-3ubuntu1
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-62601 is a low vulnerability (CVSS 1.7) in Eprosima Fast-dds, published February 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. No source names a fixed version.

References

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