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-2025-58183 Unbounded allocation when parsing GNU sparse map in archive/tar Recently updated On this page  CVE-2025-58183  Subscribe RSS PowerShell  API  CSAF Security Vulnerability Released: Oct 31, 2025 Last updated: Jun 3, 2026 Assigning CNA Go CVE.org link CVE-2025-58183  CVSS Source CISA ADP Vector String CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Metrics CVSS:3.1 3.3 / 3.3  Base score metrics: 3.3 / Temporal score metrics: 3.3  Expand all  Collapse all Metric Value   Base score metrics(8) Attack Vector Local Attack Complexity Low Privileges Required None User Interaction Required Scope Unchanged Confidentiality None Integrity None Availability Low Please see Common Vulnerability Scoring System for more information on the definition of these metrics. FAQ Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this. 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 Loading... 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 14.0 Jun 3, 2026 Information published. 13.0 Apr 14, 2026 Information published. 12.0 Mar 31, 2026 Information published. 11.0 Mar 12, 2026 Information published. 10.0 Mar 4, 2026 Information published. 9.0 Feb 18, 2026 Information published. 8.0 Dec 13, 2025 Information published. 7.0 Dec 12, 2025 Information published. 6.0 Dec 7, 2025 Information published. 5.0 Dec 6, 2025 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