CVE-2026-15370 | A flaw was found in libssh. During SFTP server directory lis… | CVSS 6.7 MEDIUM

Description

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead to crashes or possible code execution on the server.

Metadata

CVE ID: CVE-2026-15370
State: PUBLISHED
Assigner: redhat
Reserved: 2026-07-10 08:14 UTC
Published: 2026-07-21 09:07 UTC
Last updated: 2026-07-21 09:07 UTC
Primary CWE: CWE-121
Stack-based Buffer Overflow
Vendor / Product: Red Hat / Red Hat Enterprise Linux 10
Sources: cve.org · NVD

Severity & Metrics

6.7 MEDIUM CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products (4)

Vendor	Product	Platform	Versions
Red Hat	Red Hat Enterprise Linux 10	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—
Red Hat	Red Hat Hardened Images	—	—

Weakness (CWE)

CWE	Source	Description
CWE-121	cna	Stack-based Buffer Overflow

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.7	MEDIUM	3.1	cna	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References (2)