CVE-2020-29490Network attack vector

Storage processor panic via crafted UDP requests

Published Jan 5, 2021 · Updated Sep 16, 2024

Denial of service in Dell Technologies Unity before 5.0.4.0.5.012 allows remote attackers to panic a storage processor via UDP requests. Dell has not disclosed the packet fields or processing defect; the public mechanism is limited to crafted UDP traffic reaching an NFS-enabled NAS server. An NFS export must be present, and successful exploitation interrupts storage service rather than altering or exposing stored data.

CVSS severity7.5
High
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Dell Technologies Unity before 5.0.4.0.5.012 allows remote attackers to panic a storage processor via UDP requests. Dell has not disclosed the packet fields or processing defect; the public mechanism is limited to crafted UDP traffic reaching an NFS-enabled NAS server. An NFS export must be present, and successful exploitation interrupts storage service rather than altering or exposing stored data.

The record

CVE
CVE-2020-29490
Published
Jan 5, 2021
Updated
Sep 16, 2024
Vendor
Dell Technologies
Product
Unity
Classifications
CWE-400, T1498
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=unspecified <5.0.4.0.5.012

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Dell Technologies · Unityversion=unspecified <5.0.4.0.5.012

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5DellCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1498Network 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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