CVE-2020-5015Network attack vector

Service interruption via malformed UDP requests

Published Mar 24, 2021 · Updated Sep 16, 2024

Denial of service in IBM Elastic Storage Server 5.3.0 through 5.3.6.2 allows remote attackers to interrupt service via malformed UDP requests. IBM has not published the affected UDP service or the parsing error that mishandles the malformed datagrams. Network reachability to the affected UDP service is sufficient; no authentication or user interaction is required, and the reported impact is limited to availability.

CVSS severity7.5
High
EPSS probability2.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in IBM Elastic Storage Server 5.3.0 through 5.3.6.2 allows remote attackers to interrupt service via malformed UDP requests. IBM has not published the affected UDP service or the parsing error that mishandles the malformed datagrams. Network reachability to the affected UDP service is sufficient; no authentication or user interaction is required, and the reported impact is limited to availability.

The record

CVE
CVE-2020-5015
Published
Mar 24, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Elastic Storage Server
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.3.0
  2. Affected versionversion=5.3.6.2
  3. Affected versionversion=6.0.0
  4. Affected versionversion=6.0.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Elastic Storage Serverversion=5.3.0; version=5.3.6.2; version=6.0.0; version=6.0.1.2

Published CVSS scores

7.5IBMCVSS:3.0/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 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 exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo