CVE-2020-24679

highpriority · track · 40EPSS 0.019 · 79 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.89% (79th) EPSS

CVSS 10 · high

Is it mine?

13 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · cybersecurity@ch.abb.comexploitability 3.9 · impact 3.6

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (13)

Products and version ranges known to be affected.

ABB ABB Ability™ Symphony® Plus Historianunspecified → 3.2enisa_euvdEU
ABB ABB Ability™ Symphony® Plus Operationsunspecified → 2.1 SP2 Rollup 2enisa_euvdEU
ABB ABB Ability™ Symphony® Plus Operationsunspecified → 2.2enisa_euvdEU
ABB ABB Ability™ Symphony® Plus Operationsunspecified → 3.3 Service Pack 1enisa_euvdEU
abb symphony + historian= 3.0nvdUScpe:2.3:a:abb:symphony_\+_historian:*:*:*:*:*:*:*:*
abb symphony + historian= 3.1nvdUScpe:2.3:a:abb:symphony_\+_historian:*:*:*:*:*:*:*:*
abb symphony + operations= 1.1nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 2.0nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 2.1nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 3.0nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 3.1nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 3.2nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*
abb symphony + operations= 3.3nvdUScpe:2.3:a:abb:symphony_\+_operations:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-22modified 2026-06-17

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references (7)

External citations — patches, advisories, analysis.

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