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9.1CRITICAL
CVE-2025-49796 — A vulnerability was found in libxml2.
Unknown · Unknown · Published 16 Jun 2025 · Modified 28 Sept 2026
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.
References
- https://access.redhat.com/errata/RHSA-2025:10630
- https://access.redhat.com/errata/RHSA-2025:10698
- https://access.redhat.com/errata/RHSA-2025:10699
- https://access.redhat.com/errata/RHSA-2025:11580
- https://access.redhat.com/errata/RHSA-2025:12098
- https://access.redhat.com/errata/RHSA-2025:12099
- https://access.redhat.com/errata/RHSA-2025:12199
- https://access.redhat.com/errata/RHSA-2025:12237
- https://access.redhat.com/errata/RHSA-2025:12239
- https://access.redhat.com/errata/RHSA-2025:12240
What to do
- Check whether Unknown is in your asset inventory.
- Patch in the next maintenance window; prioritise internet-facing systems.
- Record the decision in your risk register for audit evidence.
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Link: adminadda.com/cve/CVE-2025-49796