VDB
ALPINE-CVE-2025-26466
ALPINE-CVE-2025-26466
PUBLISHED
CVSS 5.900000095367432 MEDIUM
A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.
Risk Scores
CVSS 3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.20 | openssh | 7.9, 7.9, 7.9 |
| Alpine:v3.24 | openssh | 0 |
| Alpine:v3.19 | openssh | 7.2, 0, 5.1_p1-r2 |
| Alpine:v3.21 | openssh | 5.9_p1-r1, 5.1_p1-r2, 5.2_p1-r0 |
| Alpine:v3.23 | openssh | 0, 5.1_p1-r1, 5.1_p1-r2 |
| Alpine:v3.22 | openssh | 0, 5.1_p1-r1, 5.1_p1-r2 |
Timeline
- Feb 28, 2025 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated