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Update on Critical Log4j Vulnerability CVE-2021-44228

ID: 37af3791-6357-52de-adb4-75f6b6922d8c

STIX ID: report--37af3791-6357-52de-adb4-75f6b6922d8c

Feed Name: Arctic Wolf Blog

Threat Score
90/100

Date Published: 2022-01-17

Date Updated: 2026-04-26

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Arctic Wolf summarizes the critical Log4j/Log4Shell RCE vulnerabilities (CVE-2021-44228 and CVE-2021-45046), documents active exploitation campaigns using LDAP/DNS/RMI to deliver malware, and provides detection and remediation resources including an open-source Log4Shell Deep Scan tool, patching guidance (upgrade to Log4j 2.16.0), and concierge incident response support for customers.

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