`CVE-2022-41881` Netty

Affected software	Netty
Severity	7.5 High CVSS 3.1 2 scores
Fixed in	`4.1.86.Final`
Weakness	CWE-674
Published	12 Dec 2022
Updated	17 Jun 2026

Description

Netty project is an event-driven asynchronous network application framework. In versions prior to 4.1.86.Final, a StackOverflowError can be raised when parsing a malformed crafted message due to an infinite recursion. This issue is patched in version 4.1.86.Final. There is no workaround, except using a custom HaProxyMessageDecoder.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: yes, technical impact: partial.
Indexed PoC none indexed
EPSS 1.6% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists.

Protection none
Action unverified
Review automated Upstream data
Record active

Decided by	Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding	This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix	https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

Decided by

Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

Finding

This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

Candidate fix

https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary published

CVSS 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L security-advisories@github.com Secondary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`	NVD	Primary	published
CVSS 3.1	5.3	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`	security-advisories@github.com	Secondary

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update July 2024 ↗	CPU	2024-Q3	Oracle Database Server / Fleet Patching and Provisioning (Netty) (23.4)
Oracle Critical Patch Update October 2023 ↗	CPU	2023-Q4	Oracle Financial Services Applications / Security (Netty) (2.6.2)
Oracle Critical Patch Update July 2023 ↗	CPU	2023-Q3	Oracle Commerce / Experience Manager (Netty) (11.3.2) Oracle Communications / Core (Netty) (23.1.0) Oracle Communications / Install/Upgrade (Netty) (22.4.2, 22.4.3) Oracle Communications Applications / Common fns (Netty) (12.0.6.0.0) Oracle Communications Applications / Common fns (Netty) (12.0.6.0.0) Oracle Communications Applications / HTTP Gateway (Netty) (12.0.0.4.0-12.0.0.8.0) Oracle Communications Applications / Messaging Store (Netty) (8.1.0.21.0) Oracle Financial Services Applications / Accessibility (Netty) (14.7.0.2.0, 14.7.1.0.0) Oracle Financial Services Applications / Base (Netty) (14.4-14.7) Oracle Financial Services Applications / Common (Netty) (14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0) Oracle Financial Services Applications / Common (Netty) (14.7.1.0.0) Oracle Financial Services Applications / Dashboard (Netty) (14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0) Oracle Financial Services Applications / INFRA code (Netty) (14.5-14.7) Oracle Financial Services Applications / Reports (Netty) (14.5-14.7) Oracle Financial Services Applications / Security (Netty) (14.7.0.2.0, 14.7.1.0.0) Oracle Utilities Applications / Tools (Netty) (2.5.0.1, 2.5.0.2, 2.6.0.0) Oracle Utilities Applications / Tools (Netty) (6.0.0.1-6.0.0.3, 7.0.0.0)
Oracle Critical Patch Update April 2023 ↗	CPU	2023-Q2	Oracle Communications / Policy (Netty) (22.4.0-22.4.4, 23.1.0-23.1.1) Oracle Financial Services Applications / UI General (Netty) (18.2, 18.3, 19.1, 19.2, 21.1, 22.1, 22.2) Oracle Fusion Middleware / Core (Netty) (12.2.1.4.0, 14.1.1.0.0) Oracle Fusion Middleware / Security Framework (Netty) (12.2.1.4.0) Oracle PeopleSoft / Elastic Search (Netty) (8.58, 8.59, 8.60)
Oracle Critical Patch Update January 2023 ↗	CPU	2023-Q1	Oracle Communications / Configuration (Netty) (22.3.0, 22.4.0)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update July 2024 ↗

CPU

2024-Q3

Oracle Database Server / Fleet Patching and Provisioning (Netty) (23.4)

Oracle Critical Patch Update October 2023 ↗

CPU

2023-Q4

Oracle Financial Services Applications / Security (Netty) (2.6.2)

Oracle Critical Patch Update July 2023 ↗

CPU

2023-Q3

Oracle Commerce / Experience Manager (Netty) (11.3.2)
Oracle Communications / Core (Netty) (23.1.0)
Oracle Communications / Install/Upgrade (Netty) (22.4.2, 22.4.3)
Oracle Communications Applications / Common fns (Netty) (12.0.6.0.0)
Oracle Communications Applications / Common fns (Netty) (12.0.6.0.0)
Oracle Communications Applications / HTTP Gateway (Netty) (12.0.0.4.0-12.0.0.8.0)
Oracle Communications Applications / Messaging Store (Netty) (8.1.0.21.0)
Oracle Financial Services Applications / Accessibility (Netty) (14.7.0.2.0, 14.7.1.0.0)
Oracle Financial Services Applications / Base (Netty) (14.4-14.7)
Oracle Financial Services Applications / Common (Netty) (14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0)
Oracle Financial Services Applications / Common (Netty) (14.7.1.0.0)
Oracle Financial Services Applications / Dashboard (Netty) (14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0)
Oracle Financial Services Applications / INFRA code (Netty) (14.5-14.7)
Oracle Financial Services Applications / Reports (Netty) (14.5-14.7)
Oracle Financial Services Applications / Security (Netty) (14.7.0.2.0, 14.7.1.0.0)
Oracle Utilities Applications / Tools (Netty) (2.5.0.1, 2.5.0.2, 2.6.0.0)
Oracle Utilities Applications / Tools (Netty) (6.0.0.1-6.0.0.3, 7.0.0.0)

Oracle Critical Patch Update April 2023 ↗

CPU

2023-Q2

Oracle Communications / Policy (Netty) (22.4.0-22.4.4, 23.1.0-23.1.1)
Oracle Financial Services Applications / UI General (Netty) (18.2, 18.3, 19.1, 19.2, 21.1, 22.1, 22.2)
Oracle Fusion Middleware / Core (Netty) (12.2.1.4.0, 14.1.1.0.0)
Oracle Fusion Middleware / Security Framework (Netty) (12.2.1.4.0)
Oracle PeopleSoft / Elastic Search (Netty) (8.58, 8.59, 8.60)

Oracle Critical Patch Update January 2023 ↗

CPU

2023-Q1

Oracle Communications / Configuration (Netty) (22.3.0, 22.4.0)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Commerce	Experience Manager (Netty)	11.3.2	11.3.2
Oracle Communications	Configuration (Netty)	22.3.0, 22.4.0	22.3.0 · 22.4.0
Oracle Communications	Core (Netty)	23.1.0	23.1.0
Oracle Communications	Install/Upgrade (Netty)	22.4.2, 22.4.3	22.4.2 · 22.4.3
Oracle Communications	Policy (Netty)	22.4.0-22.4.4, 23.1.0-23.1.1
Oracle Communications Applications	Common fns (Netty)	12.0.6.0.0	12.0.6.0.0
Oracle Communications Applications	HTTP Gateway (Netty)	12.0.0.4.0-12.0.0.8.0
Oracle Communications Applications	Messaging Store (Netty)	8.1.0.21.0	8.1.0.21.0
Oracle Database Server	Fleet Patching and Provisioning (Netty)	23.4	23.4
Oracle Financial Services Applications	Accessibility (Netty)	14.7.0.2.0, 14.7.1.0.0	14.7.0.2.0 · 14.7.1.0.0
Oracle Financial Services Applications	Base (Netty)	14.4-14.7
Oracle Financial Services Applications	Common (Netty)	14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0	14.5.0.8.0 · 14.6.0.4.0 · 14.7.0.2.0 · 14.7.1.0.0
Oracle Financial Services Applications	Dashboard (Netty)	14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0	14.5.0.8.0 · 14.6.0.4.0 · 14.7.0.2.0 · 14.7.1.0.0
Oracle Financial Services Applications	INFRA code (Netty)	14.5-14.7
Oracle Financial Services Applications	Reports (Netty)	14.5-14.7
Oracle Financial Services Applications	Security (Netty)	2.6.2	2.6.2 · 14.7.0.2.0 · 14.7.1.0.0
Oracle Financial Services Applications	UI General (Netty)	18.2, 18.3, 19.1, 19.2, 21.1, 22.1, 22.2	18.2 · 18.3 · 19.1 · 19.2 · 21.1 · 22.1 · 22.2
Oracle Fusion Middleware	Core (Netty)	12.2.1.4.0, 14.1.1.0.0	12.2.1.4.0 · 14.1.1.0.0
Oracle Fusion Middleware	Security Framework (Netty)	12.2.1.4.0	12.2.1.4.0
Oracle PeopleSoft	Elastic Search (Netty)	8.58, 8.59, 8.60	8.58 · 8.59 · 8.60
Oracle Utilities Applications	Tools (Netty)	6.0.0.1-6.0.0.3, 7.0.0.0	2.5.0.1 · 2.5.0.2 · 2.6.0.0 · 7.0.0.0

Family

Component

Versions, as Oracle lists them

Read as

Oracle Commerce

Experience Manager (Netty)

11.3.2

Oracle Communications

Configuration (Netty)

22.3.0, 22.4.0

22.3.0 · 22.4.0

Oracle Communications

Core (Netty)

23.1.0

Oracle Communications

Install/Upgrade (Netty)

22.4.2, 22.4.3

22.4.2 · 22.4.3

Oracle Communications

Policy (Netty)

22.4.0-22.4.4, 23.1.0-23.1.1

Oracle Communications Applications

Common fns (Netty)

12.0.6.0.0

Oracle Communications Applications

HTTP Gateway (Netty)

12.0.0.4.0-12.0.0.8.0

Oracle Communications Applications

Messaging Store (Netty)

8.1.0.21.0

Oracle Database Server

Fleet Patching and Provisioning (Netty)

23.4

Oracle Financial Services Applications

Accessibility (Netty)

14.7.0.2.0, 14.7.1.0.0

14.7.0.2.0 · 14.7.1.0.0

Oracle Financial Services Applications

Base (Netty)

14.4-14.7

Oracle Financial Services Applications

Common (Netty)

14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0

14.5.0.8.0 · 14.6.0.4.0 · 14.7.0.2.0 · 14.7.1.0.0

Oracle Financial Services Applications

Dashboard (Netty)

14.5.0.8.0, 14.6.0.4.0, 14.7.0.2.0, 14.7.1.0.0

14.5.0.8.0 · 14.6.0.4.0 · 14.7.0.2.0 · 14.7.1.0.0

Oracle Financial Services Applications

INFRA code (Netty)

14.5-14.7

Oracle Financial Services Applications

Reports (Netty)

14.5-14.7

Oracle Financial Services Applications

Security (Netty)

2.6.2

2.6.2 · 14.7.0.2.0 · 14.7.1.0.0

Oracle Financial Services Applications

UI General (Netty)

18.2, 18.3, 19.1, 19.2, 21.1, 22.1, 22.2

18.2 · 18.3 · 19.1 · 19.2 · 21.1 · 22.1 · 22.2

Oracle Fusion Middleware

Core (Netty)

12.2.1.4.0, 14.1.1.0.0

12.2.1.4.0 · 14.1.1.0.0

Oracle Fusion Middleware

Security Framework (Netty)

12.2.1.4.0

Oracle PeopleSoft

Elastic Search (Netty)

8.58, 8.59, 8.60

8.58 · 8.59 · 8.60

Oracle Utilities Applications

Tools (Netty)

6.0.0.1-6.0.0.3, 7.0.0.0

2.5.0.1 · 2.5.0.2 · 2.6.0.0 · 7.0.0.0

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

io.netty:netty-codec-haproxy 0 4.1.86.Final unbounded

Package	Introduced	Fixed	Last affected
`io.netty:netty-codec-haproxy`	0	`4.1.86.Final`	unbounded

Products and versions

3 products, 4 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	debian	debian linux	generic	10.0 · 11.0
osv	io.netty	netty-codec-haproxy	generic	＜ 4.1.86
nvd	netty	netty	generic	＜ 4.1.86

Source

Vendor

Product

Scheme

Affected versions

nvd

debian

debian linux

generic

10.0 · 11.0

osv

io.netty

netty-codec-haproxy

generic

＜ 4.1.86

nvd

netty

generic

＜ 4.1.86

References

URL	Tags
https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v	advisory
https://github.com/netty/netty	PACKAGE
https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html	WEB
https://security.netapp.com/advisory/ntap-20230113-0004	WEB
https://www.debian.org/security/2023/dsa-5316	WEB
https://security.netapp.com/advisory/ntap-20230113-0004/	Third Party Advisory

URL

Timeline

Published	2022-12-12	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2022-12-12

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: io.netty:netty-codec-haproxy

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint matched Mitigation candidate References include candidate fix URL (advisory tier): https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v

18 open-source-maven skipped The affected package being open source on Maven, so the fix can be read

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match no match A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold no match Severity is HIGH — only MEDIUM/LOW are deprioritized

24 no-exploit-published decided it matched No exploit published No exploit code has been published, and an upstream fix path does exist, so the remediation half of the candidacy still holds.

Products the scope rules checked

The products this CVE's record names, and whether VRT tracks each one. The scope rules decided on these.

Vendor Product Tracked CPE Source

netty netty tracked cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* yaml

debian debian_linux not tracked cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

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