CVE-2022-21822Network attack vector

Service interruption via oversized admin connection pool

Published Mar 17, 2022 · Updated Aug 3, 2024

Resource exhaustion in NVIDIA FLARE before 2.0.16 allows remote attackers to interrupt service through admin-port connections. The HCI admin server permits 128 concurrent connections and allows each connection to reserve up to 512 MB, exposing as much as 64 GB of memory. No authentication or user interaction is required; exhausting host memory can make the FLARE system unavailable.

CVSS severity7.5
High
EPSS probability1.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in NVIDIA FLARE before 2.0.16 allows remote attackers to interrupt service through admin-port connections. The HCI admin server permits 128 concurrent connections and allows each connection to reserve up to 512 MB, exposing as much as 64 GB of memory. No authentication or user interaction is required; exhausting host memory can make the FLARE system unavailable.

The record

CVE
CVE-2022-21822
Published
Mar 17, 2022
Updated
Aug 3, 2024
Vendor
DPDK Project
Product
NVIDIA FLARE
Classifications
CWE-770, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

  1. Affected versionversion=All versions prior to 2.0.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DPDK Project · NVIDIA FLAREversion=All versions prior to 2.0.16

Published CVSS scores

7.5NVIDIA CorporationCVSS: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.

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No observations available

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

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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