How severe is CVE-2020-24680?

CVE-2020-24680 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-24680 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24680?

CVE-2020-24680 primarily affects Abb Symphony + Historian. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-24680?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-24680 published?

CVE-2020-24680 was published on 2020-12-22 and last updated on 2026-06-17.

CVE-2020-24680

CVE-2020-24680 is a high-severity vulnerability in Abb Symphony + Historian with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 7.0)
CVSS v2: 4.6
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Abb Symphony + Historian
Published: 2020-12-22
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-24680?: In S+ Operations and S+ Historian, the passwords of internal users (not Windows Users) are encrypted but improperly stored in a database.
How severe is CVE-2020-24680?: CVE-2020-24680 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-24680 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24680?: CVE-2020-24680 primarily affects Abb Symphony + Historian. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-24680?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-24680 published?: CVE-2020-24680 was published on 2020-12-22 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:abb:symphony_\+_historian:3.0:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_historian:3.1:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:1.1:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:2.0:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:2.1:sp1:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:2.1:sp2:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:3.0:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:3.1:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:3.2:*:*:*:*:*:*:*
cpe:2.3:a:abb:symphony_\+_operations:3.3:*:*:*:*:*:*:*

More vulnerabilities in Abb Symphony + Historian

CVE-2020-24683 — Critical (CVSS 9.8): The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which…
CVE-2020-24675 — Critical (CVSS 9.8): In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations…
CVE-2020-24673 — Critical (CVSS 9.8): In S+ Operations and S+ Historian, a successful SQL injection exploit can read sensitive data from the database, modify…
CVE-2020-24678 — High (CVSS 8.8): An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations…
CVE-2020-24677 — High (CVSS 8.8): Vulnerabilities in the S+ Operations and S+ Historian web applications can lead to a possible code execution and…
CVE-2020-24674 — High (CVSS 8.8): In S+ Operations and S+ Historian, not all client commands correctly check user permission as expected. Authenticated…

All CVEs affecting Abb Symphony + Historian →

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