CVE-2021-20836: omron corporation omron cx-supervisor Out-of-bounds Read
CVSS: 6.5v3.1MediumModified
Published 19-10-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20836 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in omron corporation omron cx-supervisor. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 19-10-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.0Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 21-09-2026
21-09-202621-10-2026
EPSS score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Omron1 product
- cx-supervisor4.0.0.13 | 4.0.0.16
Omron corporation1 product
- omron cx-supervisorv4.0.0.13 and v4.0.0.16
2 vendors · 2 products