Buffer overflow in Honeywell Opc Ua Tunneller
CVE-2020-27297
The affected product is vulnerable to a heap-based buffer overflow, which may allow an attacker to manipulate memory with controlled values and remotely execute code on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Honeywell Opc Ua Tunneller
- Opc Ua Tunneller — versions All versions prior to 6.3.0.8233
Weakness classification (CWE)
References
- us-cert.cisa.gov/ics/advisories/icsa-21-021-03 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27297?
- CVE-2020-27297 is a critical-severity vulnerability in Honeywell Opc Ua Tunneller, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-01-26.
- How severe is CVE-2020-27297?
- Critical severity. CVSS v3 base score is 9.8 out of 10.