Cyber Resilience

CVE-2020-27299

Critical

Published: 26 January 2021

Published
26 January 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS Score 0.0022 45.1th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-27299 is a critical-severity Out-of-bounds Read (CWE-125) vulnerability in Honeywell Opc Ua Tunneller. Its CVSS base score is 9.1 (Critical).

Operationally, ranked at the 45.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The affected product is vulnerable to an out-of-bounds read, which may allow an attacker to obtain and disclose sensitive data information or cause the device to crash on the OPC UA Tunneller (versions prior to 6.3.0.8233).

CWE(s)
CWE-125

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

honeywell
opc ua tunneller
≤ 6.3.0.8233

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References