cve.bz

CVE-2018-20839

4.3 mediumEPSS 2.5%

Medium (4.3). EPSS 2.5% chance of exploitation in the next 30 days.

systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.

Severity

CVSS 3.1

4.3 medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON