What is CVE-2023-43696?

CVE-2023-43696 is a high-severity vulnerability in Sick Apu0200, classified under Improper Access Control. CVSS score: 8.2/10. Published 2023-10-09.

How severe is CVE-2023-43696?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2023-43696 known to be exploited?

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

Arbitrary file upload in Sick Apu0200

CVE-2023-43696

Improper Access Control in SICK APU allows an unprivileged remote attacker to download as well as upload arbitrary files via anonymous access to the FTP server.

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

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

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-2023-43696?: CVE-2023-43696 is a high-severity vulnerability in Sick Apu0200, classified under Improper Access Control. CVSS score: 8.2/10. Published 2023-10-09.
How severe is CVE-2023-43696?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2023-43696 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.