CVE-2023-39534
Malformed GAP submessage triggers assertion failure
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this 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
- High
Exploit likelihood
What each source reports
CVE List Score used
Malformed GAP submessage triggers assertion failure
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
CVE-2023-39534- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
EUVDEUVD-2023-43244
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
EUVD-2023-43244- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
NVD
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
CVE-2023-39534- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
OSV
Malformed GAP submessage triggers assertion failure
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
CVE-2023-39534- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2023-39534
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
DEBIAN-CVE-2023-39534- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-39534
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.
- Record
UBUNTU-CVE-2023-39534- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-6306-1 No score
fastdds vulnerabilities
It was discovered that Fast DDS incorrectly handled certain inputs. A remote attacker could possibly use this issue to cause a denial of service and information exposure. This issue only affected Ubuntu 22.04 LTS. (CVE-2021-38425)
It was discovered that Fast DDS incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash. (CVE-2023-39534, CVE-2023-39945, CVE-2023-39946, CVE-2023-39947, CVE-2023-39948, CVE-2023-39949)
- Record
USN-6306-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fastddsDebian:12 |
before 2.9.1+ds-1+deb12u1, plus listed versions 2.9.1+ds-1 |
2.9.1+ds-1+deb12u1 |
fastddsDebian:13 |
before 2.10.1+ds-2 | 2.10.1+ds-2 |
fastddsDebian:11 From an advisory covering 6 CVEs |
before 2.1.0+ds-9+deb11u1, plus listed versions 2.1.0+ds-9 |
2.1.0+ds-9+deb11u1 |
fastddsDebian:12 From an advisory covering 6 CVEs |
before 2.9.1+ds-1+deb12u1, plus listed versions 2.9.1+ds-1 |
2.9.1+ds-1+deb12u1 |
fastddsUbuntu:Pro:22.04:LTS |
before 2.5.0+ds-3ubuntu0.1~esm1, plus listed versions 2.1.0+ds-92.4.1+ds-12.5.0+ds-3 |
2.5.0+ds-3ubuntu0.1~esm1 |
fastddsUbuntu:Pro:22.04:LTS From an advisory covering 7 CVEs |
before 2.5.0+ds-3ubuntu0.1~esm1, plus listed versions 2.1.0+ds-92.4.1+ds-12.5.0+ds-3 |
2.5.0+ds-3ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-39534 is a high vulnerability (CVSS 7.5) in Eprosima Fast Dds, published August 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. Fixed in fastdds 2.9.1+ds-1+deb12u1.
References
github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wp
bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-assert-230509.pcap
debian.org/security/2023/dsa-5481
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nvd.nist.gov/vuln/detail/CVE-2023-39534
security-tracker.debian.org/tracker/CVE-2023-39534
ubuntu.com/security/CVE-2023-39534
cve.org/CVERecord?id=CVE-2023-39534