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THREATINT
PUBLISHED

CVE-2025-49796

Libxml: type confusion leads to denial of service (dos)



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.

Reserved 2025-06-10 | Published 2025-06-16 | Updated 2025-06-16 | Assigner redhat


CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Problem types

Out-of-bounds Read

Product status

Default status
affected

Default status
unknown

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Timeline

2025-06-12:Reported to Red Hat.
2025-06-11:Made public.

References

access.redhat.com/security/cve/CVE-2025-49796 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2372385 (RHBZ#2372385) issue-tracking

cve.org (CVE-2025-49796)

nvd.nist.gov (CVE-2025-49796)

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