6.8

CVE-2023-33921: siemens cp-8031 master module Exposed Dangerous Method or Function

CVSS: 6.8v3.1MediumModified
Published 13-06-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-33921 is a medium (CVSS 6.8) Exposed Dangerous Method or Function vulnerability in siemens cp-8031 master module. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.3% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-06-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). The affected devices contain an exposed UART console login interface. An attacker with direct physical access could try to bruteforce or crack the root password to login to the device.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

0.00 pp

From 0.39% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens3 products

1 vendor · 3 products

References

3 links