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The Apache Log4J Vulnerability: Questionnaire & VRM Tips | UpGuard

ID: 9a474592-383c-531c-befc-b734bd41347b

STIX ID: report--9a474592-383c-531c-befc-b734bd41347b

Feed Name: UpGuard Blog

Threat Score
90/100

Date Published: 2024-01-05

Date Updated: 2026-05-01

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In December 2021 the critical Log4Shell vulnerability (CVE-2021-44228) in Apache Log4j allowed remote code execution across widespread Java-based systems, prompting massive exploitation attempts and subsequent discovery of related CVEs; this report explains the risk, remediation steps (patching, disabling JNDI, scanning), and provides an 11-question vendor security questionnaire and remediation workflow to manage third-party exposure and prioritize fixes.

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