xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId.

Project Subscriptions

Vendors Products
Libexpat Project Subscribe
Libexpat Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 23 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title Integer Overflow in libexpat's resolveSystemId leading to Denial of Service libexpat: libexpat: Integer overflow in xmlwf can lead to information disclosure and arbitrary code execution.
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 22 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 21 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
Title Integer Overflow in libexpat's resolveSystemId leading to Denial of Service

Sun, 21 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
Description xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId.
First Time appeared Libexpat Project
Libexpat Project libexpat
Weaknesses CWE-190
CPEs cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Vendors & Products Libexpat Project
Libexpat Project libexpat
References
Metrics cvssV3_1

{'score': 6.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-22T15:56:58.296Z

Reserved: 2026-06-21T15:54:59.828Z

Link: CVE-2026-56410

cve-icon Vulnrichment

Updated: 2026-06-22T15:56:53.978Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-21T15:55:00Z

Links: CVE-2026-56410 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-21T18:45:05Z

Weaknesses