Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since May 1, 2023.
CVE-2021-45046
Apache Log4j2 Deserialization of Untrusted Data Vulnerability
Added to KEV May 1, 2023
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2021-45046
- CWE
- CWE-917
- Affected products
- Log4j2 · Apache Log4j2 · Apache
What happened
Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations.
What it means for your business
Apache Log4j2 is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2021-45046). Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations. CISA remediation due date: 2023-05-22. If you need help checking exposure, call (864) 335-9223.
Required action
Apply updates per vendor instructions.
CISA due date: May 22, 2023
Sources
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