CVE-2026-3731

5.3 MEDIUM
Published: March 08, 2026 Modified: March 12, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://vuldb.com/?ctiid.349709
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.349709
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.767120
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz
Source: cna@vuldb.com
Patch Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.3 / 10.0
EPSS (Exploit Probability)
0.1%
27th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

libssh