CVE-2020-27274
HIGH
7.5
CVSS Score
Published: January 26, 2021 at 07:03 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
1 product affected across 1 vendorOpc Ua Tunneller
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
Some parsing functions in the affected product do not check the return value of malloc and the thread handling the message is forced to close, which may lead to a denial-of-service condition on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 6.3.0.8233
Affected range stops below 6.3.0.8233, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-21-021-03CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-754
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