CVE-2020-24679
Denial of Service attack on Symphony Plus
CRITICAL
9.8
CVSS Score
Published: December 22, 2020 at 09:17 PM UTC
Updated: June 17, 2026 at 03:05 AM UTC
2 products affected across 1 vendorSymphony + OperationsSymphony + Historian
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
A S+ Operations and S+ Historian service is subject to a DoS by special crafted messages. An attacker might use this flaw to make it crash or even execute arbitrary code on the machine where the service is hosted.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.1 SP2 Rollup 2, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3 Service Pack 1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCMitigationVendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launchx_refsource_MISCMitigationVendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2PAA123982&LanguageCode=en&DocumentPartId=&Action=LaunchCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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