CVE-2023-43503

Name: CVE-2023-43503
Creator: NVD / NIST
Published: 2023-11-14T11:15:11.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2023-43503 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in COMOS (All versions < V10.4.4). Caching system in the affected application leaks sensitive information such as user and project information in cleartext via UDP.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in COMOS (All versions < V10.4.4). Caching system in the affected application leaks sensitive information such as user and project information in cleartext via UDP.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.31%

22.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Comos	< 10.4.4

References

https://cert-portal.siemens.com/productcert/pdf/ssa-137900.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-137900.pdfVendor Advisory

Timeline

Published: Nov 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43503?

How severe is CVE-2023-43503?

CVE-2023-43503 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43503?

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-2023-43503?

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

Scan your code now

Source: NVD / NIST