What is CVE-2021-28172?

CVE-2021-28172 is a high-severity vulnerability in Deltaflow Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2021-04-06.

How severe is CVE-2021-28172?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Deltaflow Project

CVE-2021-28172

There is a Path Traversal vulnerability in the file download function of Vangene deltaFlow E-platform. Remote attackers can access credential data with this leakage.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2021-04-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (77.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Deltaflow Project
Vangene Deltaflow E-Platform — versions 4

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.chtsecurity.com/news/7f0874b5-516b-4637-842d-b6fb6c335c66 (Third Party Advisory)
www.twcert.org.tw/tw/cp-132-4619-fd2b9-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-28172?: CVE-2021-28172 is a high-severity vulnerability in Deltaflow Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2021-04-06.
How severe is CVE-2021-28172?: High severity. CVSS v3 base score is 7.5 out of 10.