Vulnerability · Published Jan 26, 2021 · Assigned by icscert
CVE-2020-27274
High 7.5
In plain English
A high-severity security flaw in OPC UA Tunneller. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.2%top 32.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | OPC UA Tunneller | All versions prior to 6.3.0.8233 |
Weakness: CWE-754
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-021-03 x_refsource_MISC