A heap overflow vulnerability (CVE-2026-53196) exists in the `io_ti` USB serial driver's `get_manuf_info()` function, which could allow local attackers to execute arbitrary code or cause a denial of service. The flaw affects Azure Linux 3.0 systems with the `azl3 kernel` versions prior to 6.6.141.1-1. Microsoft has released a patch in kernel version 6.6.141.1-1, which should be applied.
We use optional cookies to improve your experience on our websites, such as through social media connections, and to display personalized advertising based on your online activity. If you reject optional cookies, only cookies necessary to provide you the services will be used. You may change your selection by clicking “Manage Cookies” at the bottom of the page. Privacy Statement Third-Party Cookies AcceptRejectManage cookies MSRC Customer Guidance Security Update Guide Vulnerabilities CVE-2026-53196 USB: serial: io_ti: fix heap overflow in get_manuf_info() NewRecently updated On this page CVE-2026-53196 Subscribe RSS PowerShell API CSAF Security Vulnerability Released: Jun 27, 2026 Last updated: Jun 28, 2026 Assigning CNA Linux CVE.org link CVE-2026-53196 Acknowledgements Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgements for more information. Security Updates To determine the support lifecycle for your software, see the Microsoft Support Lifecycle. Release date Descending Edit columns Download Filters Product Family Max Severity Impact Platform Clear Release date Product Platform Impact Max Severity Article Download Build Number Assigning CNA Title: Release date, Content: Jun 27, 2026 azl3 kernel 6.6.141.1-1 Azure Linux 3.0 - Important Title: Knowledge Base Articles for azl3 kernel 6.6.141.1-1, Content:, 1 link CBL-Mariner Releases Title: Download Security Update for azl3 kernel 6.6.141.1-1, Content:, 1 link Security Update Title: Build numbers, Content: 6.6.143.1-1 Title: Assigning CNA, Content: Linux All results loaded Loaded all 1 rows Disclaimer The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. Revisions version revisionDate description 2.0 Jun 28, 2026 Information published. 1.0 Jun 27, 2026 Information published. How satisfied are you with the MSRC Security Update Guide? Rating Broken Bad Below average Average Great! Your Privacy Choices Consumer Health Privacy