What is CVE-2020-27693?

CVE-2020-27693 is a medium-severity vulnerability in Microsoft Windows, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 4.4/10. Published 2020-11-09.

How severe is CVE-2020-27693?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Microsoft Windows

CVE-2020-27693

Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 stores administrative passwords using a hash that is considered outdated.

Published 2020-11-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (77.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% 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

Weakness classification (CWE)

CWE-916 — Use of Password Hash With Insufficient Computational Effort

References

success.trendmicro.com/solution/000279833 (Exploit, Vendor Advisory)
sec-consult.com/en/blog/advisories/vulnerabilities-in-trend-micro-interscan-mes… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-27693?: CVE-2020-27693 is a medium-severity vulnerability in Microsoft Windows, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 4.4/10. Published 2020-11-09.
How severe is CVE-2020-27693?: Medium severity. CVSS v3 base score is 4.4 out of 10.