An update for libxml2 is now available for HCE 2.0 Security Advisory hws_security@huawei.com Huawei Cloud HCE2-SA-2025-0239 Final 1.0 1.0 2025-09-23T11:51:50:00Z current version 2025-09-23T11:51:50:00Z 2025-09-23T11:51:50:00Z HCE SA Engine 1.0.0 An update for libxml2 is now available for HCE 2.0 HCE Security has rated this update as having a security impact of Critical.A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Security Fix(es): A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program_x27;s crash using libxml or other possible undefined behaviors. (CVE-2025-49794) A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory. (CVE-2025-49796) A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections. (CVE-2025-6170) This document is provided on an "AS IS" basis and does not implyany kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no eventshall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by any means, is totally at your own risk. Huawei is entitled to amend or update this document from time to time. The information and data embodied in this document and any attachment are strictly confidential information of Huawei and are supplied on the understanding that they will be held confidentially and not disclosed to third parties without the prior written consent of Huawei. Use all reasonable efforts to protect the confidentiality of information. In particular, do not directly or indirectly disclose, allow access to, transmit or transfer information to a third party without our prior written consent. Thank you for your co-operation. Receipt of this security advisory shall be deemed as your consent of the terms and conditions above. Huawei Cloud EulerOS 2.0 libxml2 This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-49794 CVE-2025-49794 HCE 2.0:libxml2-2.9.12-5.r37.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-49794 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-49796 CVE-2025-49796 HCE 2.0:libxml2-2.9.12-5.r37.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-49796 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-6170 CVE-2025-6170 HCE 2.0:libxml2-2.9.12-5.r37.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-6170 2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L