CVE-2020-24677 json
Insecure Web Service in Symphony Plus
published 5y ago modified 4mo ago also EUVD-2020-17391
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
Vulnerabilities in the S+ Operations and S+ Historian web applications can lead to a possible code execution and privilege escalation, redirect the user somewhere else or download unwanted data.
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
Is CVE-2020-24677 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).
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-754 Improper Check for Unusual or Exceptional Conditions
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-2020-24677
- NVD CVE-2020-24677
Fencer Intel 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.