CWE-406
Allowed-with-ReviewInsufficient Control of Network Message Volume (Network Amplification)
Abstraction: Class · Status: Incomplete
The product does not sufficiently monitor or control transmitted network traffic volume, so that an actor can cause the product to transmit more traffic than should be allowed for that actor.
37 vulnerabilities reference this CWE, most recent first.
CVE-2021-38429 (GCVE-0-2021-38429)
Vulnerability from cvelistv5 – Published: 2022-05-05 15:26 – Updated: 2025-04-16 16:22- CWE-406 - Insufficient Control of Network Message Volume (Network Amplification)
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|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_CONFIRM |
| https://opendds.org/ | x_refsource_CONFIRM |
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CVE-2021-38425 (GCVE-0-2021-38425)
Vulnerability from cvelistv5 – Published: 2022-05-05 15:24 – Updated: 2025-04-16 16:23- CWE-406 - Insufficient Control of Network Message Volume (Network Amplification)
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CVE-2021-38135 (GCVE-0-2021-38135)
Vulnerability from cvelistv5 – Published: 2024-11-22 15:34 – Updated: 2024-11-25 18:11{
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CVE-2021-4234 (GCVE-0-2021-4234)
Vulnerability from cvelistv5 – Published: 2022-07-06 19:10 – Updated: 2024-08-03 17:23- CWE-406 - Insufficient Control of Network Message Volume
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CVE-2020-10772 (GCVE-0-2020-10772)
Vulnerability from cvelistv5 – Published: 2020-11-27 17:40 – Updated: 2024-08-04 11:14- CWE-406 - >CWE-400
| URL | Tags |
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| https://bugzilla.redhat.com/show_bug.cgi?id=1846026 | x_refsource_MISC |
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CVE-2019-14850 (GCVE-0-2019-14850)
Vulnerability from cvelistv5 – Published: 2021-03-18 18:56 – Updated: 2024-08-05 00:26| URL | Tags |
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| https://bugzilla.redhat.com/show_bug.cgi?id=1757258 | x_refsource_MISC |
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CVE-2014-125036 (GCVE-0-2014-125036)
Vulnerability from cvelistv5 – Published: 2023-01-02 17:11 – Updated: 2024-08-06 14:10- CWE-406 - Insufficient Control of Network Message Volume
| URL | Tags |
|---|---|
| https://vuldb.com/?id.217190 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.217190 | signaturepermissions-required |
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| Vendor | Product | Version | |
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| drybjed | ansible-ntp |
Affected:
n/a
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GHSA-3JGF-C787-2JMH
Vulnerability from github – Published: 2026-08-05 09:31 – Updated: 2026-08-05 18:31It was not possible to govern the rate at which the broker would respond to an echo flow, enabling an authenticated attacker to cause excessive resource usage and potential denial of service.
This issue affects Apache Qpid Broker-J: through 10.0.1.
Users are recommended to upgrade to version 10.1.0, which fixes the issue.
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GHSA-4855-Q42W-5VR4
Vulnerability from github – Published: 2025-08-29 20:07 – Updated: 2025-08-29 21:58Summary
A denial of service vulnerability was discovered in ntpd-rs where an attacker can induce a message storm between two NTP servers running ntpd-rs.
Details
Since ntpd-rs version 1.2.0, when configured as a server, incorrectly responded to all NTP messages sent to the server's port with a time reply, including to responses from other servers. As a consequence, a message with a spoofed IP address of another server could cause two servers running ntpd-rs to continually respond to each other, consuming significant amounts of resources.
Impact
Any time server running ntpd-rs with version between 1.2.0 and 1.6.1 inclusive which allows non-NTS traffic is affected. Client-only configurations are not affected. Affected users are recommended to upgrade to version 1.6.2 as soon as possible.
Workarounds
Should upgrading not be possible, the impact of the issue can be mitigated by: - Whitelisting access to only IP addresses of clients using the server, using the ignore filter method. - Blocking incoming non-request traffic on the NTP server port using a firewall. - Disabling public access to the vulnerable NTP server - Disabling the server functionality by removing any [server] sections from the configuration.
Acknowledgements
The ntpd-rs authors thank Eric Sesterhenn from X41 D-Sec GmbH for finding and reporting this issue.
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GHSA-5G4F-VG94-WPXH
Vulnerability from github – Published: 2026-09-09 15:35 – Updated: 2026-09-09 15:35PocketMine-MP versions before 5.39.2 contain a network amplification vulnerability in ActorEventPacket handling that allows clients to trigger consuming animations for all visible players. Attackers can send crafted ActorEventPacket messages to spam animation events to other clients and waste server CPU and memory resources.
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],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/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",
"type": "CVSS_V4"
}
]
}
Mitigation
Strategy: Separation of Privilege
An application must make network resources available to a client commensurate with the client's access level.
Mitigation
Define a clear policy for network resource allocation and consumption.
Mitigation
An application must, at all times, keep track of network resources and meter their usage appropriately.
No CAPEC attack patterns related to this CWE.