What is CVE-2019-7306?

CVE-2019-7306 is a medium-severity vulnerability in Byobu, classified under Files or Directories Accessible to External Parties. CVSS score: 4.3/10. Published 2020-04-17.

How severe is CVE-2019-7306?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2019-7306 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Byobu

CVE-2019-7306

Byobu Apport hook may disclose sensitive information since it automatically uploads the local user's .screenrc which may contain private hostnames, usernames and passwords. This issue affects: byobu

Published 2020-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (75.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.000

Affected products

Byobu
Canonical Byobu — versions unspecified
Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve.mitre.org/cgi-bin/cvename.cgi (Third Party Advisory)
bugs.launchpad.net/ubuntu/+source/byobu/+bug/1827202 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-7306?: CVE-2019-7306 is a medium-severity vulnerability in Byobu, classified under Files or Directories Accessible to External Parties. CVSS score: 4.3/10. Published 2020-04-17.
How severe is CVE-2019-7306?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2019-7306 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.