How severe is CVE-2020-27977?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Capasystems Capainstaller

CVE-2020-27977

CapaSystems CapaInstaller before 6.0.101 does not properly assign, modify, or check privileges for an actor who attempts to edit registry values, allowing an attacker to escalate privileges.

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

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (24.8th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Capasystems Capainstaller

References

capawiki.capasystems.com/display/ci/CapaInstaller+6.0+-+Build+101 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-27977?: CVE-2020-27977 is a high-severity vulnerability in Capasystems Capainstaller. CVSS score: 7.8/10. Published 2020-11-09.
How severe is CVE-2020-27977?: High severity. CVSS v3 base score is 7.8 out of 10.