CVE-2020-14002
MEDIUM5.9EPSS 0.75%Published: 6/29/2020Modified: 4/28/2026
Description
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
Affected packages (2)
- Alpine/puttyfrom 0, < 0.74-r0
- Debian/puttyfrom 0, < 0.74-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |