CVE-2025-49796

Published Jun 16, 2025

Last updated 9 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-49796 is a vulnerability found in libxml2. It stems from processing specific `sch:name` elements within XML input files, which can lead to memory corruption. An attacker could exploit this by crafting a malicious XML file that triggers a crash in libxml2 or causes other undefined behavior due to corrupted data in memory. This vulnerability can be exploited remotely without requiring any privileges or user interaction. Successful exploitation could allow an attacker to trigger a denial of service, potentially manipulate system stability and data integrity. Currently, there are no fixed versions available, and organizations using affected versions of libxml2 are advised to monitor vendor advisories for patch releases and consider implementing network-level controls.

Description: 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.
Source: secalert@redhat.com
NVD status: Awaiting Analysis

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.1
Impact score: 5.2
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Severity: CRITICAL

Weaknesses

secalert@redhat.com: CWE-125

Hype score: Not currently trending

References