VDB
ALPINE-CVE-2020-14002
ALPINE-CVE-2020-14002
PUBLISHED
CVSS 5.900000095367432 MEDIUM
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).
Risk Scores
CVSS v3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.15 | putty | 0.73-r2, 0.73-r1, 0.73-r0 |
| Alpine:v3.14 | putty | 0.69-r0, 0.73-r2, 0.73-r1 |
| Alpine:v3.19 | putty | 0.73-r2, 0, 0.60-r0 |
| Alpine:v3.11 | putty | 0.73-r2, 0.73-r1, 0.73-r0 |
| Alpine:v3.9 | putty | 0.66-r0, 0.73-r0, 0.71-r1 |
| Alpine:v3.10 | putty | 0, 0.60-r0, 0.61-r0 |
| Alpine:v3.13 | putty | 0, 0.60-r0, 0.61-r0 |
| Alpine:v3.17 | putty | 0.60-r0, 0.61-r0, 0.62-r0 |
| Alpine:v3.16 | putty | 0.73-r2, 0.73-r1, 0.73-r0 |
| Alpine:v3.12 | putty | 0, 0.73-r2, 0.73-r1 |
| Alpine:v3.18 | putty | 0.73-r2, 0.73-r1, 0.73-r0 |
Timeline
- Jun 29, 2020 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch