Symphony \+ HistorianApplication · Abb

CVE-2020-24679

CRITICAL · 9.8 CVSS v3.1 Published 2020-12-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A S+ Operations and S+ Historian service is subject to a DoS by special crafted messages. An attacker might use this flaw to make it crash or even execute arbitrary code on the machine where the service is hosted.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

S+ Operations and S+ Historian services contain a denial-of-service vulnerability where specially crafted messages can cause the service to crash. The critical severity (9.8) indicates the vulnerability may also allow arbitrary code execution on the host machine.

MitigationApply available vendor patches for S+ Operations and S+ Historian; until patched, restrict network access to these services and implement input validation at network boundaries.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Symphony \+ HistorianApplication
Affected:= 3.0= 3.1
Symphony \+ OperationsApplication
Affected:= 1.1= 2.0= 2.1= 3.0= 3.1= 3.2= 3.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed ABB Symphony+ Historian version
    Check the installed version of ABB Symphony+ Historian on the system, typically found in the program's About or Version information, or via system inventory tools that list installed software
    Affected if The installed version is 3.0 or 3.1
  2. Identify installed ABB Symphony+ Operations version
    Check the installed version of ABB Symphony+ Operations on the system, typically found in the program's About or Version information, or via system inventory tools that list installed software
    Affected if The installed version is 1.1, 2.0, 2.1, 3.0, 3.1, 3.2, or 3.3
  3. Verify if affected services are running
    Check if the ABB Symphony+ Historian or ABB Symphony+ Operations services are currently running on the host
    Affected if Either service is running and the version matches an affected version from the lists above

A system is affected if ABB Symphony+ Historian (version 3.0 or 3.1) or ABB Symphony+ Operations (versions 1.1 through 3.3) is installed and the respective service is running.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply available vendor patches for S+ Operations and S+ Historian; until patched, restrict network access to these services and implement input validation at network boundaries.

Fix this in Symphony \+ Historian Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-24679 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data