SB2026072244 - Uncontrolled Memory Allocation in Fast DDS

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Main Vulnerability Database SB2026072244

SB2026072244 - Uncontrolled Memory Allocation in Fast DDS

Published: July 22, 2026

Security Bulletin ID SB2026072244
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Uncontrolled Memory Allocation (CVE-ID: CVE-2026-45097)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to memory allocation with excessive size value in DynamicType CDR deserialization when processing a crafted CDR wire buffer containing an unbounded sequence_length value. A remote attacker can send a specially crafted serialized sample to cause a denial of service.

Both XCDRv1 and XCDRv2 deserialization paths are affected, and the issue impacts subscribers using DynamicTypes.


Remediation

Install update from vendor's website.

References