CVE-2022-34668

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 8.5%, top 6% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 9%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

NVFLARE, versions prior to 2.1.4, contains a vulnerability that deserialization of Untrusted Data due to Pickle usage may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
94.5%
KEV
Not listed

Published

August 29, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jun 6, 2026
Patch available. Sources: github.
github Patch Available

NVFLARE unsafe deserialization due to Pickle · Advisory · NVIDIA/NVFlare · GitHub

https://github.com/NVIDIA/NVFlare/security/advisories/GHSA-6qv6-q77g-7qm6
generic

Packet Storm

http://packetstormsecurity.com/files/171483/NVFLARE-Unsafe-Deserialization.html

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
nvflare0.1.3 ... 2.0.19 (30 versions)2.1.4—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 02:12 UTCEG score recompute
  2. 2026-07-22 22:59 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  5. 2026-07-21 15:23 UTCEPSS rescore
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  13. 2026-07-16 21:20 UTCOSV refresh
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  1. 2026-07-07 13:44 UTCEPSS rescore
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  13. 2026-06-28 20:02 UTCOSV refresh
  14. 2026-06-28 14:06 UTCEPSS rescore
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  23. 2026-06-23 21:31 UTCEPSS rescore
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  29. 2026-06-21 01:58 UTCEPSS rescore
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  31. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-13 22:58 UTCEPSS rescore
  41. 2026-06-12 23:10 UTCEPSS rescore
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  43. 2026-06-11 13:58 UTCEPSS rescore
  44. 2026-06-11 13:58 UTCEPSS rescore
  45. 2026-06-11 13:39 UTCOSV refresh
  46. 2026-06-10 22:17 UTCEPSS rescore
  47. 2026-06-10 13:20 UTCEPSS rescore
  48. 2026-06-06 13:46 UTCEPSS rescore
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  59. 2026-06-01 13:50 UTCEPSS rescore
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  61. 2026-05-31 00:15 UTCEPSS rescore
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  63. 2026-05-29 13:43 UTCEPSS rescore
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  65. 2026-05-28 13:43 UTCEPSS rescore
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  67. 2026-05-27 13:39 UTCEPSS rescore
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  69. 2026-05-26 13:43 UTCEPSS rescore
  70. 2026-05-26 13:43 UTCEPSS rescore
  71. 2026-05-25 16:22 UTCEG score recompute
  72. 2026-05-24 16:51 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51051
    First seen Mar 25, 2023

    NVFLARE < 2.1.4 - Unsafe Deserialization due to Pickle

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-34668?
CVE-2022-34668 is a critical vulnerability published on August 29, 2022. NVFLARE, versions prior to 2.1.4, contains a vulnerability that deserialization of Untrusted Data due to Pickle usage may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.
When was CVE-2022-34668 disclosed?
CVE-2022-34668 was first published in the National Vulnerability Database on August 29, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-34668 actively exploited?
CVE-2022-34668 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-34668?
CVE-2022-34668 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-34668?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-34668, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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