CVE-2021-44228
Review this vulnerability's source-backed evidence, with unavailable values and read failures kept distinct.
A permanent, source-backed tracker page. Values are shown only when returned; explicit gaps and read failures remain different states.
Detection and validation
Mapped metadata availability only. These signals do not change priority.
Sigma
LockerGoga Ransomware Activity. Level: critical. Status: stable.
Open Sigma metadataAtomic
Data Encrypted with GPG4Win. Executor: powershell. Elevation: not required.
Open Atomic metadataNuclei
Apache Log4j2 Remote Code Injection. Check identifier: CVE-2021-44228.
Open Nuclei metadata
What it is
ReportedApache Log4j2 contains a vulnerability where JNDI features do not protect against attacker-controlled JNDI-related endpoints, allowing for remote code execution.
Source reported · Source: NVD · Source last published: · Source description excerpt; complete tracked detail loads below. · Source last updated: · Tracker data as of:
What is affected
ReportedApache; Log4j2. Product-level identification only; no affected-version conclusion is available from this field.
Source reported · Source: NVD · Source last published: · Source last updated: · Tracker data as of:
Urgency and basis
ReportedAct now · 574.9
Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated: · Tracker data as of:
Exploitation evidence
ReportedActive exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog
Source reported · Active since: · CISA KEV added: · VulnCheck KEV added: · ENISA added: · Source last updated: · Tracker data as of:
What to do
ReportedFor all affected software assets for which updates exist, the only acceptable remediation actions are: 1) Apply updates; OR 2) remove affected assets from agency networks. Temporary mitigations using one of the measures provided at https://www.cisa.gov/uscert/ed-22-02-apache-log4j-recommended-mitigation-measures are only acceptable until updates are available.
Source remediation ↗Source reported · Tracked source remediation field · Source last updated: · Tracker data as of:
Evidence detail
Loading the full tracker evidence record…