Which versions of Netty are affected by CVE-2025-58057?

Organizations using netty-codec-compression should be aware of notable risk from CVE-2025-58057 rated CVSS 6.9. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2025-58057?

Yes, a public proof-of-concept exploit is available for CVE-2025-58057. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-58057?

Within 30 days: Identify affected systems running netty-codec-compression and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Netty CVE-2025-58057

Q: What is the CVSS score of CVE-2025-58057?

CVE-2025-58057 has a CVSS 4.0 base score of 6.9 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

MEDIUM

Improper Handling of Highly Compressed Data (Data Amplification) (CWE-409)

2025-09-04 security-advisories@github.com

Denial Of Service Netty Red Hat Suse

6.9

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.9 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

SUSE

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Red Hat

7.5 MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:10 vuln.today

Patch released

Mar 28, 2026 - 19:10 nvd

Patch available

PoC Detected

Sep 08, 2025 - 16:45 vuln.today

Public exploit code

CVE Published

Sep 04, 2025 - 10:42 nvd

MEDIUM 6.9

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

643 maven packages depend on io.netty:netty-codec (37 direct, 606 indirect)

Ecosystem-wide dependent count for version 4.1.125.Final.

DescriptionGitHub Advisory

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.

AnalysisAI

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-409. 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. Affected products include: Netty.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Netty

View all

CVE-2025-24970 HIGH This Week POC

7.5 Feb 10

Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final

CVE-2026-48748 HIGH This Week POC

7.5 Jun 12

Denial of service in the Netty HTTP/3 codec (io.netty:netty-codec-http3) prior to version 4.2.15.Final allows remote una

CVE-2026-50011 HIGH This Week POC

7.5 Jun 12

Denial of service in Netty's io.netty:netty-codec-redis component (prior to 4.1.135.Final and 4.2.15.Final) allows remot

CVE-2022-41881 HIGH This Week POC

7.5 Dec 12

Netty project is an event-driven asynchronous network application framework. Rated high severity (CVSS 7.5), this vulner

CVE-2020-7238 HIGH This Week POC

7.5 Jan 27

Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Tr

CVE-2019-16869 HIGH This Week POC

7.5 Sep 26

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked

CVE-2023-34462 MEDIUM This Month POC

6.5 Jun 22

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performan

CVE-2022-41915 MEDIUM This Month POC

6.5 Dec 13

Netty project is an event-driven asynchronous network application framework. Rated medium severity (CVSS 6.5), this vuln

CVE-2024-47535 MEDIUM This Month POC

5.5 Nov 12

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performan

CVE-2022-24823 MEDIUM This Month POC

5.5 May 06

Netty is an open-source, asynchronous event-driven network application framework. Rated medium severity (CVSS 5.5), this

CVE-2021-21290 MEDIUM This Month POC

5.5 Feb 08

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable h

CVE-2024-29025 MEDIUM This Month POC

5.3 Mar 25

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performan

Same weakness CWE-409 – Improper Handling of Highly Compressed Data (Data Amplification)

View all

CVE-2026-59803 HIGH POC

8.7

CVE-2026-59939 HIGH POC

7.5

CVE-2024-7765 HIGH POC

7.5

CVE-2026-22776 HIGH POC

7.5

CVE-2026-22870 HIGH POC

7.5

CVE-2024-3572 HIGH POC

7.5

CVE-2025-46730 MEDIUM POC

6.8

CVE-2025-32949 MEDIUM POC

6.5

Same technique Denial Of Service

View all

CVE-2015-5119 CRITICAL POC

9.8

CVE-2011-2462 CRITICAL POC

9.8

CVE-2011-0611 HIGH POC

8.8

CVE-2012-1889 HIGH POC

8.8

CVE-2012-0507 CRITICAL POC

9.8

CVE-2014-1761 HIGH POC

7.8

CVE-2015-5122 CRITICAL POC

9.8

CVE-2011-0609 HIGH POC

7.8

Vendor StatusVendor

SUSE

Severity: High

Product	Status
Container suse/manager/5.0/x86_64/server:5.0.5.1.7.33.2 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.8.7.1 Image server-image	Affected
SUSE Enterprise Storage 7.1	Fixed
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6	Fixed
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7	Fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS	Fixed

CVE-2025-58057 vulnerability details – vuln.today

Back

Netty CVE-2025-58057

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

Blast Radius

DescriptionGitHub Advisory

AnalysisAI

Technical ContextAI

RemediationAI

More in Netty

Same weakness CWE-409 – Improper Handling of Highly Compressed Data (Data Amplification)

Same technique Denial Of Service

Vendor StatusVendor

SUSE

Share

External POC / Exploit Code