CVE-2024-39229Public exploitNetwork attack vector

DDNS domain hijacking via plaintext update requests

Published Aug 6, 2024 · Updated Nov 21, 2024

Improper message integrity in GL.iNet router firmware allows remote attackers to redirect DDNS domains through forged update requests. The DDNS client sends hostname, IP, and HTTP authorization data to ddns.glddns.com over plaintext HTTP, allowing interception and replay. Attackers must obtain the device MAC address, serial number, and DDNS identifier; successful redirection supports device impersonation and phishing.

CVSS severity6.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper message integrity in GL.iNet router firmware allows remote attackers to redirect DDNS domains through forged update requests. The DDNS client sends hostname, IP, and HTTP authorization data to ddns.glddns.com over plaintext HTTP, allowing interception and replay. Attackers must obtain the device MAC address, serial number, and DDNS identifier; successful redirection supports device impersonation and phishing.

The record

CVE
CVE-2024-39229
Published
Aug 6, 2024
Updated
Nov 21, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-924, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

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 exploitPublished

Weakness, pattern, technique

CWE-924Improper Enforcement of Message Integrity During Transmission in a Communication Channel
T1557Adversary-in-the-Middle

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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