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CVE Record
[ CRITICAL ]CVE-2021-45046

Apache Log4j2 Deserialization of Untrusted Data Vulnerability

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.

cat cve-2021-45046.json
Vendor
Apache
Product
Log4j2
CVSS
9.0
EPSS (exploit probability)
100.0%
Status
kevransomware use
CISA patch-by (BOD 22-01)
Published
Source
https://nvd.nist.gov/vuln/detail/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.

Added to CISA’s Known Exploited Vulnerabilities catalog on 2023-05-01. Required action per CISA: Apply updates per vendor instructions. Due date: 2023-05-22.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.