What is CVE-2020-16128?

CVE-2020-16128 is a low-severity vulnerability in Canonical Aptdaemon, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.8/10. Published 2020-12-09.

How severe is CVE-2020-16128?

Low severity. CVSS v3 base score is 3.8 out of 10.

Information disclosure in Canonical Aptdaemon

CVE-2020-16128

The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.

Published 2020-12-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% 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

Canonical Aptdaemon — versions 1.1.1+bzr982-0ubuntu14, 1.1.1+bzr982-0ubuntu19, 1.1.1+bzr982-0ubuntu32
Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information

References

usn.ubuntu.com/usn/usn-4664-1 (Patch, Third Party Advisory)
bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1899513 (Broken Link)

Frequently asked questions

What is CVE-2020-16128?: CVE-2020-16128 is a low-severity vulnerability in Canonical Aptdaemon, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 3.8/10. Published 2020-12-09.
How severe is CVE-2020-16128?: Low severity. CVSS v3 base score is 3.8 out of 10.