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CVE-2021-20836

MEDIUMCVSS 6.5/10EPSS 0.78%

Last modified

CVE-2021-20836 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
0.78%

51.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OmronCx-Supervisor4.0.0.13
OmronCx-Supervisor4.0.0.16

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-20836?
CVE-2021-20836 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20836?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20836?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST