Is org.apache.logging.log4j:log4j-core affected by CVE-2021-45046?

Maven org.apache.logging.log4j:log4j-core is affected in >=2.13.0 <2.16.0, <2.12.2.

Is CVE-2021-45046 being exploited?

Yes — it is on the CISA Known Exploited Vulnerabilities (KEV) list.

critical exploited in the wild

CVE-2021-45046

Q: Is CVE-2021-45046 being exploited?

Yes — it is on the CISA Known Exploited Vulnerabilities (KEV) list.

Maven · org.apache.logging.log4j:log4j-core • Maven · org.ops4j.pax.logging:pax-logging-log4j2

Summary

Incomplete fix for Apache Log4j vulnerability

Severity: critical
EPSS: 100.0% (p100)
Also known as: GHSA-7rjr-3q55-vv33#org.apache.logging.log4j:log4j-core, GHSA-7rjr-3q55-vv33#org.ops4j.pax.logging:pax-logging-log4j2
Published: 2021-12-14

References

Related advisories

CVE-2021-44228 — critical · Maven/org.apache.logging.log4j:log4j-core
CVE-2026-34478 — medium · Maven/org.apache.logging.log4j:log4j-core
CVE-2026-34480 — medium · Maven/org.apache.logging.log4j:log4j-core
CVE-2026-34477 — medium · Maven/org.apache.logging.log4j:log4j-core
CVE-2025-68161 — medium · Maven/org.apache.logging.log4j:log4j-core

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.