What is CVE-2023-5100?

CVE-2023-5100 is a medium-severity vulnerability in Sick Apu0200, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2023-10-09.

How severe is CVE-2023-5100?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2023-5100 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Sick Apu0200

CVE-2023-5100

Cleartext Transmission of Sensitive Information in RDT400 in SICK APU allows an unprivileged remote attacker to retrieve potentially sensitive information via intercepting network traffic that is not encrypted.

Published 2023-10-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (37.3th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

sick.com/psirt (issue-tracking, Product)
sick.com/.well-known/csaf/white/2023/sca-2023-0010.pdf (vendor-advisory, Vendor Advisory)
sick.com/.well-known/csaf/white/2023/sca-2023-0010.json (x_csaf, Vendor Advisory)

Frequently asked questions

What is CVE-2023-5100?: CVE-2023-5100 is a medium-severity vulnerability in Sick Apu0200, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2023-10-09.
How severe is CVE-2023-5100?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2023-5100 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.