What is CVE-2023-3256?

CVE-2023-3256 is a high-severity vulnerability in Advantech R-Seenet, classified under External Control of File Name or Path. CVSS score: 8.8/10. Published 2023-06-22.

How severe is CVE-2023-3256?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Advantech R-Seenet

CVE-2023-3256

Advantech R-SeeNet versions 2.4.22 allows low-level users to access and load the content of local files.

Published 2023-06-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (49.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% 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

Advantech R-Seenet — versions 0

Weakness classification (CWE)

References

www.cisa.gov/news-events/ics-advisories/icsa-23-173-02 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2023-3256?: CVE-2023-3256 is a high-severity vulnerability in Advantech R-Seenet, classified under External Control of File Name or Path. CVSS score: 8.8/10. Published 2023-06-22.
How severe is CVE-2023-3256?: High severity. CVSS v3 base score is 8.8 out of 10.