# DSA-6160-1: netty security update

DSA-6160-1, released March 11, 2026, fixes 1 CVE in netty. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/dsa-6160-1
- Platform: Linux
- Released: Mar 11, 2026
- Priority: High (Closes CVE-2025-55163, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2025-55163

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [netty](https://patchblox.com/security/data/product/linux/netty.md) | Debian 12.15 (bookworm) | 1:4.1.48-7+deb12u2 |
| [netty](https://patchblox.com/security/data/product/linux/netty.md) | Debian 13.5 (trixie) | 1:4.1.48-10+deb13u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-55163](https://patchblox.com/security/data/cve/CVE-2025-55163.md) | High | libnetty-java: Netty is an asynchronous, event-driven network application framework | 7.5 | 0.0113 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo