# DLA-3859-1: systemd security update

DLA-3859-1, released September 2, 2024, fixes 1 CVE in systemd (version 247.3-7+deb11u6). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dla-3859-1
- Platform: Linux
- Released: Sep 2, 2024
- Priority: High (Closes CVE-2023-50387, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2023-50387

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [systemd](https://patchblox.com/security/data/product/linux/systemd.md) | Debian 11.6 (bullseye) | 247.3-7+deb11u6 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-50387](https://patchblox.com/security/data/cve/CVE-2023-50387.md) | High | MITRE: CVE-2023-50387 DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers | 7.5 | 0.9999 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo