CVE-2024-53269Public exploit

Data-plane crash via non-IP additional addresses

Published Dec 18, 2024 · Updated Dec 18, 2024

Denial of service in affected Envoy 1.30, 1.31, and 1.32 releases allows remote authenticated users to crash the data plane. EDS and static-cluster address-list construction accepts non-IP additional addresses, which Happy Eyeballs sorting later treats as IP objects. Exploitation requires high-privilege control of endpoint configuration and Happy Eyeballs to be enabled; the reported consequence is an Envoy process crash.

CVSS severity4.5
Medium
EPSS probability0.68%
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 affected Envoy 1.30, 1.31, and 1.32 releases allows remote authenticated users to crash the data plane. EDS and static-cluster address-list construction accepts non-IP additional addresses, which Happy Eyeballs sorting later treats as IP objects. Exploitation requires high-privilege control of endpoint configuration and Happy Eyeballs to be enabled; the reported consequence is an Envoy process crash.

The record

CVE
CVE-2024-53269
Published
Dec 18, 2024
Updated
Dec 18, 2024
Vendor
Envoy Proxy
Product
Envoy
Classifications
CWE-670, T1499.004
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Dec 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 1.30.0, < 1.30.8
  2. Affected versionversion=>= 1.31.0, < 1.31.4
  3. Affected versionversion=>= 1.32.0, < 1.32.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Envoy Proxy · Envoyversion=>= 1.30.0, < 1.30.8; version=>= 1.31.0, < 1.31.4; version=>= 1.32.0, < 1.32.2

Published CVSS scores

4.5GitHub, Inc.CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-670Always-Incorrect Control Flow Implementation
T1499.004Application or System Exploitation

Public exploit references

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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