Out-of-bounds Read in Codesys Plcwinnt

CVE-2021-30195

CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.

Vulnerability class: Buffer Overflow

EPSS: 0.072 (93.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (Permissions Required, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30195?: CVE-2021-30195 is a high-severity vulnerability in Codesys Plcwinnt, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2021-05-25.
How severe is CVE-2021-30195?: High severity. CVSS v3 base score is 7.5 out of 10.