NULL Pointer Dereference in Libxml2 Affects Multiple Vendors
CVE-2025-49795

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
16 June 2025

What is CVE-2025-49795?

A vulnerability exists in libxml2 that can be exploited when processing XPath XML expressions. By crafting a malicious XML input, an attacker can trigger a NULL pointer dereference, potentially leading to a denial of service as the application crashes when it encounters the improper input.

References

https://access.redhat.com/security/cve/CVE-2025-49795
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2372379
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-49795 : NULL Pointer Dereference in Libxml2 Affects Multiple Vendors