CVE-2025-6021

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

November 9, 2025

Last Seen

April 21, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Mageia 9 libxml2 Critical DoS Vulnerabilities Identified59.6

Mageia 9 has been found to have multiple critical vulnerabilities in the libxml2 library, leading to denial of service (DoS) conditions. The issues include unbounded recursion, heap use after free, and various types of buffer overflows, affecting systems that utilize this library. Specific CVEs asso...

Multiple CVEs Affecting XML Libraries Published on February 18, 202641.1

Two new Common Vulnerabilities and Exposures (CVEs) were published on February 18, 2026. CVE-2022-49043 affects libxml2 versions before 2.11.0, introducing a use-after-free vulnerability, while CVE-2024-28757 in libexpat versions up to 2.6.1 allows for XML Entity Expansion attacks when using externa...