CVE-2022-34668Public exploitNetwork attack vector

Remote code execution via Pickle deserialization

Published Aug 29, 2022 · Updated Aug 3, 2024

Unsafe deserialization in NVIDIA FLARE before 2.1.4 allows remote attackers to execute code through a crafted federated-learning message. The server's fed_server.py message path passes attacker-controlled fl_context bytes to pickle.loads, which invokes payload-defined reduction functions during object reconstruction. A malicious connected client can run commands with the server process's privileges, read or alter its data, or crash the service.

CVSS severity9.8
Critical
EPSS probability10.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in NVIDIA FLARE before 2.1.4 allows remote attackers to execute code through a crafted federated-learning message. The server's fed_server.py message path passes attacker-controlled fl_context bytes to pickle.loads, which invokes payload-defined reduction functions during object reconstruction. A malicious connected client can run commands with the server process's privileges, read or alter its data, or crash the service.

The record

CVE
CVE-2022-34668
Published
Aug 29, 2022
Updated
Aug 3, 2024
Vendor
DPDK Project
Product
NVIDIA FLARE
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 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 2.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DPDK Project · NVIDIA FLAREversion=All versions prior to 2.1.4

Published CVSS scores

9.8NVIDIA CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 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-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

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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