CVE-2020-27274
7.5 · HIGHOverview
CVE-2020-27274 is a high-severity vulnerability affecting honeywell opc_ua_tunneller. It was published on January 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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).
Remediation
Check the references section for vendor advisories and patches from honeywell. Update opc_ua_tunneller to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| honeywell | opc_ua_tunneller | >= 0, < 6.3.0.8233 | Affected |
Frequently Asked Questions
What is CVE-2020-27274?
CVE-2020-27274 is a high-severity vulnerability affecting honeywell opc_ua_tunneller. It was published on January 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-27274?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-27274?
Check the references section for vendor advisories and patches from honeywell. Update opc_ua_tunneller to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-27274?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27274 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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