CVE-2020-8487

Node disruption via weak IPC object access controls

Published Apr 29, 2020 · Updated Aug 4, 2024

Improper access control in ABB System 800xA Base all versions allows local users to disrupt node redundancy via crafted IPC data. Weak access control on same-machine objects lets a specially crafted application inject garbage or crafted data into inter-process communications. Exploitation requires an authenticated account and code execution on a system node; affected processes can crash, lose peer availability, or consume false runtime data.

CVSS severity6.6
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in ABB System 800xA Base all versions allows local users to disrupt node redundancy via crafted IPC data. Weak access control on same-machine objects lets a specially crafted application inject garbage or crafted data into inter-process communications. Exploitation requires an authenticated account and code execution on a system node; affected processes can crash, lose peer availability, or consume false runtime data.

The record

CVE
CVE-2020-8487
Published
Apr 29, 2020
Updated
Aug 4, 2024
Vendor
ABB
Product
System 800xA Base
Classifications
CWE-264, T1499.004, T1565.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ABB · System 800xA Baseversion=all versions

Published CVSS scores

6.6ABBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.5ABBCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H/E:F/RL:U/RC:C
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-264Permissions, Privileges, and Access Controls
T1499.004Application or System Exploitation
T1565.003Runtime Data Manipulation

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

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Your stack

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