What is CVE-2021-36764?

CVE-2021-36764 is a high-severity vulnerability in Codesys Gateway, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-08-04.

How severe is CVE-2021-36764?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Codesys Gateway

CVE-2021-36764

In CODESYS Gateway V3 before 3.5.17.10, there is a NULL Pointer Dereference. Crafted communication requests may cause a Null pointer dereference in the affected CODESYS products and may result in a denial-of-service condition.

EPSS: 0.010 (58.1th 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

Codesys Gateway
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (x_refsource_CONFIRM, Broken Link)

Frequently asked questions

What is CVE-2021-36764?: CVE-2021-36764 is a high-severity vulnerability in Codesys Gateway, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-08-04.
How severe is CVE-2021-36764?: High severity. CVSS v3 base score is 7.5 out of 10.