CVE-2021-3517

HighCVSS 8.6/10Last modified Oct 14, 2026

Description

There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness enumeration

CWE-787 CWE-125

Affected software

No affected versions have been published.

Timeline

Published: May 19, 2021
Last modified: Oct 14, 2026
NVD status: Modified

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