What is CVE-2020-27274?

CVE-2020-27274 is a high-severity vulnerability in Honeywell Opc Ua Tunneller, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2021-01-26.

How severe is CVE-2020-27274?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Honeywell Opc Ua Tunneller

CVE-2020-27274

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).

EPSS: 0.011 (63.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Honeywell Opc_ua_tunneller
N/a Opc Ua Tunneller — versions All versions prior to 6.3.0.8233

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27274?: CVE-2020-27274 is a high-severity vulnerability in Honeywell Opc Ua Tunneller, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2021-01-26.
How severe is CVE-2020-27274?: High severity. CVSS v3 base score is 7.5 out of 10.