Improper Credential Storage in Symphony Plus

published 2020-12-22 5y ago modified 2026-06-17 4mo ago also EUVD-2020-17394

cvss: 7.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits: 0; none known

In S+ Operations and S+ Historian, the passwords of internal users (not Windows Users) are encrypted but improperly stored in a database.

Patch / fix

fixed in 2

ABB ABB Ability™ Symphony® Plus Operations 2.1 SP2 Rollup 2, 2.2, 3.3 Service Pack 1
ABB ABB Ability™ Symphony® Plus Historian 3.2

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Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

ABB ABB Ability™ Symphony® Plus Operations
ABB ABB Ability™ Symphony® Plus Historian

Classification

Weakness

CWE-255 Credentials Management Errors
CWE-522 Insufficiently Protected Credentials

References

search.abb.com /library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch
mitigation, vendor-advisory
search.abb.com /library/Download.aspx?DocumentID=2PAA123982&LanguageCode=en&DocumentPartId=&Action=Launch
mitigation, vendor-advisory

Sources

CVE List CVE-2020-24680
NVD CVE-2020-24680

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