What is CVE-2023-43504?

CVE-2023-43504 is a critical-severity vulnerability in Siemens Comos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.6/10. Published 2023-11-14.

How severe is CVE-2023-43504?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Buffer overflow in Siemens Comos

CVE-2023-43504

A vulnerability has been identified in COMOS (All versions < V10.4.4). Ptmcast executable used for testing cache validation service in affected application is vulnerable to Structured Exception Handler (SEH) based buffer overflow. This cou…

Vulnerability class: Buffer Overflow

EPSS: 0.009 (53.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Siemens Comos — versions All versions < V10.4.4

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

productcert@siemens.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-43504?: CVE-2023-43504 is a critical-severity vulnerability in Siemens Comos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.6/10. Published 2023-11-14.
How severe is CVE-2023-43504?: Critical severity. CVSS v3 base score is 9.6 out of 10.