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Dossier · Vulnerability

Actively exploited · CISA KEV

CVE-2021-44228

  1. First PoC
  2. 113 days →Metasploit
  3. 1655 days →First cited attacker

Signals

Exploited in the wild
Yesadded 2021-12-10 · due 2021-12-24 · known ransomware use. An observation, not a forecast.
EPSS · 30-day forecast
100.0%Chance of exploitation in the next 30 days, 100th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD
not stated by sourcesNo NVD record yet.
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

9 known · links only

Metasploit5

  1. Versions of Apache Log4j2 impacted by CVE-2021-44228 which allow JNDI features used in configuration, log messages, and parameters, do not protect against attacker controlled LDAP and other JNDI related endpoints. This module will exploit an HTTP end point with the Log4Shell vulnerability by injecting a format message that will trigger an LDAP connection to Metasploit and load a payload. The Automatic target delivers a Java payload using remote class loading. Th

    ruby · seen 2026-10-18

  2. Versions of Apache Log4j2 impacted by CVE-2021-44228 which allow JNDI features used in configuration, log messages, and parameters, do not protect against attacker controlled LDAP and other JNDI related endpoints. This module will scan an HTTP end point for the Log4Shell vulnerability by injecting a format message that will trigger an LDAP connection to Metasploit. This module is a generic scanner and is only capable of identifying instances that are vulnerable v

    ruby · seen 2026-10-18

  3. MobileIron Core is affected by the Log4Shell vulnerability whereby a JNDI string sent to the server will cause it to connect to the attacker and deserialize a malicious Java object. This results in OS command execution in the context of the tomcat user. This module will start an LDAP server that the target will need to connect to.

    ruby · seen 2026-10-18

  4. The Ubiquiti UniFi Network Application versions 5.13.29 through 6.5.53 are affected by the Log4Shell vulnerability whereby a JNDI string can be sent to the server via the 'remember' field of a POST request to the /api/login endpoint that will cause the server to connect to the attacker and deserialize a malicious Java object. This results in OS command execution in the context of the server application. This module will start an LDAP server that the target will n

    ruby · seen 2026-10-18

  5. VMware vCenter Server is affected by the Log4Shell vulnerability whereby a JNDI string can sent to the server that will cause it to connect to the attacker and deserialize a malicious Java object. This results in OS command execution in the context of the root user in the case of the Linux virtual appliance and SYSTEM on Windows. This module will start an LDAP server that the target will need to connect to. This exploit uses the logon page vector.

    ruby · seen 2026-10-18

Exploit-DB3

  1. created 2021-12-14

  2. created 2021-12-14

  3. created 2023-04-01

Nuclei1

  1. Apache Log4j2 <=2.14.1 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled.

    yaml · seen 2026-10-18

On the wire

0 dispatches

No dispatch on our wire has named this CVE yet.

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