VDB
DEBIAN-CVE-2026-3731
DEBIAN-CVE-2026-3731
PUBLISHED
CVSS 7.5 HIGH
A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected component.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | libssh | 0.9.6-1, 0.9.8-0, 0.9.8-0 |
| Debian:13 | libssh | 0, 0, 0.11.2-1 |
| Debian:14 | libssh | 0.11.3-1, 0, 0 |
| Debian:12 | libssh | 0.12.0-1, 0.12.0-2, 0.11.3-1 |
Timeline
- Mar 8, 2026 CVE Published
- Apr 28, 2026 CVE Updated