High severity7.5NVD Advisory· Published Jan 26, 2021· Updated Jun 17, 2026
CVE-2020-27274
CVE-2020-27274
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- OPC UA Tunneller/OPC UA Tunnellerdescription
- Range: <6.3.0.8233
Patches
Vulnerability mechanics
References
1- us-cert.cisa.gov/ics/advisories/icsa-21-021-03nvdThird Party AdvisoryUS Government Resource
News mentions
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