What is CVE-2021-37444?

CVE-2021-37444 is a high-severity vulnerability in Nchsoftware Ivm Attendant, classified under Path Traversal. CVSS score: 8.8/10. Published 2021-07-25.

How severe is CVE-2021-37444?

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

Path Traversal in Nchsoftware Ivm Attendant

CVE-2021-37444

NCH IVM Attendant v5.12 and earlier suffers from a directory traversal weakness upon uploading plugins in a ZIP archive. This can lead to code execution if a ZIP element's pathname is set to a Windows startup folder, a file for the inbuilt Out-Going Message function, or a file for the the inbuilt Autodial function.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2021-07-25 · 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: 0.019 (79.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Nchsoftware Ivm Attendant

Weakness classification (CWE)

References

www.nch.com.au/ivm/index.html (Product)
github.com/0xfml/poc/blob/main/NCH/IVM_5.12_RCE.md (Third Party Advisory)

Frequently asked questions

What is CVE-2021-37444?: CVE-2021-37444 is a high-severity vulnerability in Nchsoftware Ivm Attendant, classified under Path Traversal. CVSS score: 8.8/10. Published 2021-07-25.
How severe is CVE-2021-37444?: High severity. CVSS v3 base score is 8.8 out of 10.