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Fencer Vulns
high 8.8

CVE-2020-24678 json

Potential Privilege Escalation in Symphony Plus

published 2020-12-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17392

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

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.

Patch / fix

  • 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

Exploit prediction

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

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

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.