# CVE-2025-58057: netty: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high perfor... CVE-2025-58057 is fixed in 3 products on 1 platform, first by libnetty-java 1:4.1.7-4ubuntu0.1+esm5, released September 4, 2025. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-58057 - Priority: High - CVSS: 7.5 (high) - EPSS: 0.0063 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 4, 2025 ## Description Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libnetty-java Ubuntu 18.04.6 LTS (bionic) | 1:4.1.7-4ubuntu0.1+esm5 | [libnetty-java 1:4.1.7-4ubuntu0.1+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnetty-java-1-4.1.7-4ubuntu0.1-esm5.md) | Sep 4, 2025 | | Linux | libnetty-java Ubuntu 20.04 LTS (focal) | 1:4.1.45-1ubuntu0.1~esm4 | [libnetty-java 1:4.1.45-1ubuntu0.1~esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnetty-java-1-4.1.45-1ubuntu0.1-esm4.md) | Sep 4, 2025 | | Linux | libnetty-java Ubuntu 22.04.1 LTS (jammy) | 1:4.1.48-4+deb11u2ubuntu0.1 | [libnetty-java 1:4.1.48-4+deb11u2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnetty-java-1-4.1.48-4-deb11u2ubuntu0.1.md) | Sep 4, 2025 | | Linux | libnetty-java Ubuntu 24.04.5 LTS (noble) | 1:4.1.48-9ubuntu0.1 | [libnetty-java 1:4.1.48-9ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnetty-java-1-4.1.48-9ubuntu0.1.md) | Sep 4, 2025 | | Linux | libnetty-java Ubuntu 25.10 (questing) | 1:4.1.48-10ubuntu0.25.10.2 | [libnetty-java 1:4.1.48-10ubuntu0.25.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnetty-java-1-4.1.48-10ubuntu0.25.10.2.md) | Sep 4, 2025 | | Linux | netty Debian 12.15 (bookworm) | 1:4.1.48-7+deb12u2 | [DEBIAN-CVE-2025-58057](https://patchblox.com/security/data/fix/linux/debian-cve-2025-58057.md) | Sep 4, 2025 | | Linux | netty Debian 13.5 (trixie) | 1:4.1.48-10+deb13u1 | [DEBIAN-CVE-2025-58057](https://patchblox.com/security/data/fix/linux/debian-cve-2025-58057.md) | Sep 4, 2025 | | Linux | netty Debian 14 | 1:4.1.48-12 | [DEBIAN-CVE-2025-58057](https://patchblox.com/security/data/fix/linux/debian-cve-2025-58057.md) | Sep 4, 2025 | | Linux | netty opensuse-leap 15.6 | 4.1.126-150200.4.34.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | | Linux | netty sles 15.6 | 4.1.126-150200.4.34.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | | Linux | netty sles 15.7 | 4.1.126-150200.4.34.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | | Linux | netty-tcnative opensuse-leap 15.6 | 2.0.73-150200.3.30.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | | Linux | netty-tcnative sles 15.6 | 2.0.73-150200.3.30.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | | Linux | netty-tcnative sles 15.7 | 2.0.73-150200.3.30.1 | [SUSE-SU-2025:03114-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03114-1.md) | Sep 9, 2025 | --- Data as of 2026-11-09T07:25:28Z 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.