What is CVE-2021-20675?

CVE-2021-20675 is a medium-severity vulnerability in M-System Dl8-A. CVSS score: 6.5/10. Published 2021-03-18.

How severe is CVE-2021-20675?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in M-System Dl8-A

CVE-2021-20675

M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0) allows remote authenticated attackers to cause a denial of service (DoS) condition via unspecified vectors.

Published 2021-03-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

References

www.m-system.co.jp/download_w/dl_dl8updaterE.html (Vendor Advisory)
jvn.jp/en/jp/JVN47497535/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-20675?: CVE-2021-20675 is a medium-severity vulnerability in M-System Dl8-A. CVSS score: 6.5/10. Published 2021-03-18.
How severe is CVE-2021-20675?: Medium severity. CVSS v3 base score is 6.5 out of 10.