Out-of-bounds Read in Omron Cx-Supervisor
CVE-2021-20836
Out-of-bounds read vulnerability in CX-Supervisor v4.0.0.13 and v4.0.0.16 allows an attacker with administrative privileges to cause information disclosure and/or arbitrary code execution by opening a specially crafted SCS project files.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Omron Cx-Supervisor — versions 4.0.0.13, 4.0.0.16
- Omron Corporation Cx-Supervisor — versions v4.0.0.13 and v4.0.0.16
Weakness classification (CWE)
References
- www.myomron.com/index.php (Patch, Vendor Advisory)
- jvn.jp/en/vu/JVNVU90041391/index.html (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-20836?
- CVE-2021-20836 is a medium-severity vulnerability in Omron Cx-Supervisor, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2021-10-19.
- How severe is CVE-2021-20836?
- Medium severity. CVSS v3 base score is 6.5 out of 10.