# DSA-5020-1: apache-log4j2 security update

DSA-5020-1, released December 11, 2021, fixes 1 CVE in apache-log4j2 (version 2.15.0-1~deb11u1). One of them is being exploited (CVE-2021-44228); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5020-1
- Platform: Linux
- Released: Dec 11, 2021
- Priority: Patch now (Closes CVE-2021-44228, exploited (CISA KEV, ransomware))
- CVEs: 1, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2021-44228

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [apache-log4j2](https://patchblox.com/security/data/product/linux/apache-log4j2.md) | Debian 11.6 (bullseye) | 2.15.0-1~deb11u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-44228](https://patchblox.com/security/data/cve/CVE-2021-44228.md) | Patch now | Apache Log4j Remote Code Execution Vulnerability | 10.0 | 1.0000 | CISA KEV, Ransomware, Disclosed |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo