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CVE-2026-3731

MEDIUM

5.3

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/8/2026

Derniere modification3/12/2026

Sourcenvd

Observations honeypot0

Produits affectes

libssh:libssh

Faiblesses (CWE)

CWE-119CWE-125

References

https://gitlab.com/libssh/libssh-mirror/-/commit/855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60(cna@vuldb.com)

https://vuldb.com/?ctiid.349709(cna@vuldb.com)

https://vuldb.com/?id.349709(cna@vuldb.com)

https://vuldb.com/?submit.767120(cna@vuldb.com)

https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz(cna@vuldb.com)

https://www.libssh.org/security/advisories/libssh-2026-sftp-extensions.txt(cna@vuldb.com)

Correlations IOC

Aucune correlation enregistree

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