CVE-2024-39894
7.5
HIGH
CVSS 3.1
EPSS 2.9%
Description
OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.
How to fix CVE-2024-39894
To remediate CVE-2024-39894, upgrade the affected package to a fixed version below.
- Debian/openssh—upgrade to 1:9.8p1-1 or later
Is CVE-2024-39894 being exploited?
Low — EPSS is 2.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:9.8p1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |