CVE-2022-29177Network attack vector

Node crash via oversized disconnect reason

Published May 20, 2022 · Updated Apr 23, 2025

Denial of service in Ethereum Foundation go-ethereum before 1.10.17 allows remote attackers to crash nodes with crafted p2p messages. The p2p disconnect-message handler RLP-decodes an attacker-controlled reason into a native-width unsigned integer; high-verbosity formatting converts an oversized value to a negative array index and panics. The node must accept the attacker's peer connection and run above the default INFO verbosity; the bounded consequence is a process crash.

CVSS severity5.9
Medium
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Ethereum Foundation go-ethereum before 1.10.17 allows remote attackers to crash nodes with crafted p2p messages. The p2p disconnect-message handler RLP-decodes an attacker-controlled reason into a native-width unsigned integer; high-verbosity formatting converts an oversized value to a negative array index and panics. The node must accept the attacker's peer connection and run above the default INFO verbosity; the bounded consequence is a process crash.

The record

CVE
CVE-2022-29177
Published
May 20, 2022
Updated
Apr 23, 2025
Vendor
Ethereum Foundation
Product
go-ethereum
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.10.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ethereum Foundation · go-ethereumversion=< 1.10.17

Published CVSS scores

5.9GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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