Live › vulnerability › CVE-2021-45046
Go to dashboardApache Log4j2, a Java logging library, has a flaw where the Thread Context Lookup Pattern can be used to run code via crafted log input. An attacker who can get attacker-controlled text into a log message can execute code on the server in certain non-default configurations.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apache Log4j2 | vendor | – | – |
| apache log4j | vendor | >= 2.0.1, < 2.12.2 | 2.12.2 |
| apache log4j | vendor | >= 2.13.0, < 2.16.0 | 2.16.0 |
| apache log4j | vendor | = 2.0 | – |
| cvat computer vision annotation tool | vendor | – | – |
| intel audio development kit | vendor | – | – |
| intel datacenter manager | vendor | – | – |
| intel genomics kernel library | vendor | – | – |
| intel oneapi | vendor | – | – |
| intel secure device onboard | vendor | – | – |
| intel sensor solution firmware development kit | vendor | – | – |
| intel system debugger | vendor | – | – |
| intel system studio | vendor | – | – |
| siemens sppa-t3000 ses3000 firmware | vendor | – | – |
| siemens captial | vendor | < 2019.1 | 2019.1 |
| siemens captial | vendor | = 2019.1 | – |
| siemens comos | vendor | – | – |
| siemens desigo cc advanced reports | vendor | = 4.0 | – |
| siemens desigo cc advanced reports | vendor | = 4.1 | – |
| siemens desigo cc advanced reports | vendor | = 4.2 | – |
| siemens desigo cc advanced reports | vendor | = 5.0 | – |
| siemens desigo cc advanced reports | vendor | = 5.1 | – |
| siemens desigo cc info center | vendor | = 5.0 | – |
| siemens desigo cc info center | vendor | = 5.1 | – |
| siemens e-car operation center | vendor | < 2021-12-13 | 2021-12-13 |
| siemens energy engage | vendor | = 3.1 | – |
| siemens energyip | vendor | = 8.5 | – |
| siemens energyip | vendor | = 8.6 | – |
| siemens energyip | vendor | = 8.7 | – |
| siemens energyip | vendor | = 9.0 | – |
| siemens energyip prepay | vendor | = 3.7 | – |
| siemens energyip prepay | vendor | = 3.8 | – |
| siemens gma-manager | vendor | < 8.6.2j-398 | 8.6.2j-398 |
| siemens head-end system universal device integration system | vendor | – | – |
| siemens industrial edge management | vendor | – | – |
| siemens industrial edge management hub | vendor | < 2021-12-13 | 2021-12-13 |
| siemens logo\! soft comfort | vendor | – | – |
| siemens mendix | vendor | – | – |
| siemens mindsphere | vendor | < 2021-12-11 | 2021-12-11 |
| siemens navigator | vendor | < 2021-12-13 | 2021-12-13 |
| siemens nx | vendor | – | – |
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
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