# Does Log4j vulnerability (CVE-2021-44228) is impacted for ES v7.5.2?

**URL:** <https://discuss.elastic.co/t/does-log4j-vulnerability-cve-2021-44228-is-impacted-for-es-v7-5-2/292128>\
**Category:** Elasticsearch\
**Created:** [December 16, 2021, 9:59am UTC](https://discuss.elastic.co/t/does-log4j-vulnerability-cve-2021-44228-is-impacted-for-es-v7-5-2/292128 "2021-12-16T09:59:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Anuroop1](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@Anuroop1](https://discuss.elastic.co/u/Anuroop1)\
**Post date:** [December 16, 2021, 9:59am UTC](https://discuss.elastic.co/t/does-log4j-vulnerability-cve-2021-44228-is-impacted-for-es-v7-5-2/292128/1 "2021-12-16T09:59:57Z")

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We are using Elasticsearch v7.5.2 along with OpenJDK 11.0.11 in on-premise servers and I just need to know from Elasticsearch Team support if this version is impacted by Log4j vulnerability (CVE-2021-44228) or not.

The reason why I have asked here is that this ES software v7.5.2 comes with log4j-api-2.11.1.jar and log4j-core-2.11.1.jar files. These two versions are most vulnerable. Let me know what exact counter measures that I need to apply. I also don't see any useful information about the version I have in your announcement page. It would be great if you have a list of ES versions that are impacted with mitigation steps.

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [December 20, 2021, 12:17am UTC](https://discuss.elastic.co/t/does-log4j-vulnerability-cve-2021-44228-is-impacted-for-es-v7-5-2/292128/2 "2021-12-20T00:17:51Z")

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[Apache Log4j2 Remote Code Execution (RCE) Vulnerability - CVE-2021-44228 - ESA-2021-31](https://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476) has details that will help you here.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 17, 2022, 12:18am UTC](https://discuss.elastic.co/t/does-log4j-vulnerability-cve-2021-44228-is-impacted-for-es-v7-5-2/292128/3 "2022-01-17T00:18:04Z")

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