CVE-2020-24678
Potential Privilege Escalation in Symphony Plus
An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations or S+ Historian database is affected by multiple vulnerabilities such as the possibility to allow remote authenticated users to gain high privileges.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Potential Privilege Escalation in Symphony Plus
An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations or S+ Historian database is affected by multiple vulnerabilities such as the possibility to allow remote authenticated users to gain high privileges.
- Record
CVE-2020-24678- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
EUVDEUVD-2020-17392
An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations or S+ Historian database is affected by multiple vulnerabilities such as the possibility to allow remote authenticated users to gain high privileges.
- Record
EUVD-2020-17392- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-49hv-qhwg-6w6c No score
An authenticated user might execute malicious code under the user context and take control of the...
An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations or S+ Historian database is affected by multiple vulnerabilities such as the possibility to allow remote authenticated users to gain high privileges.
- Record
GHSA-49hv-qhwg-6w6c- Weakness
- CWE-269
- Updated
- 2026-11-02
NVD
An authenticated user might execute malicious code under the user context and take control of the system. S+ Operations or S+ Historian database is affected by multiple vulnerabilities such as the possibility to allow remote authenticated users to gain high privileges.
- Record
CVE-2020-24678- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-269
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-24678 is a high vulnerability (CVSS 8.8) in Abb Ability™ Symphony® Plus Historian, published December 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.52%, the 74th percentile. No source names a fixed version.