VDB
ALPINE-CVE-2021-36367
ALPINE-CVE-2021-36367
PUBLISHED
CVSS 8.100000381469727 HIGH
PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.17 | putty | 0.60-r0, 0, 0.75-r0 |
| Alpine:v3.16 | putty | 0.73-r0, 0, 0.75-r0 |
| Alpine:v3.11 | putty | 0.62-r0, 0.65-r0, 0.64-r1 |
| Alpine:v3.13 | putty | 0.70-r0, 0.64-r1, 0.64-r0 |
| Alpine:v3.14 | putty | 0, 0, 0.60-r0 |
| Alpine:v3.15 | putty | 0.70-r1, 0.74-r0, 0.61-r0 |
| Alpine:v3.12 | putty | 0.74-r0, 0, 0.60-r0 |
| Alpine:v3.19 | putty | 0.61-r0, 0, 0 |
| Alpine:v3.18 | putty | 0.61-r0, 0.67-r0, 0.68-r0 |
Timeline
- Jul 9, 2021 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated