What is CVE-2020-16271?

CVE-2020-16271 is a critical-severity vulnerability in Kee Keepassrpc, classified under Use of Insufficiently Random Values. CVSS score: 9.1/10. Published 2020-08-03.

How severe is CVE-2020-16271?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Kee Keepassrpc

CVE-2020-16271

The SRP-6a implementation in Kee Vault KeePassRPC before 1.12.0 generates insufficiently random numbers, which allows remote attackers to read and modify data in the KeePass database via a WebSocket connection.

Published 2020-08-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.015 (73.5th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Kee Keepassrpc

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

forum.kee.pm/t/a-critical-security-update-for-keepassrpc-is-available/3040 (Vendor Advisory)
danzinger.wien/exploiting-keepassrpc/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-16271?: CVE-2020-16271 is a critical-severity vulnerability in Kee Keepassrpc, classified under Use of Insufficiently Random Values. CVSS score: 9.1/10. Published 2020-08-03.
How severe is CVE-2020-16271?: Critical severity. CVSS v3 base score is 9.1 out of 10.