UBUNTU-CVE-2026-110713

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Source

https://ubuntu.com/security/CVE-2026-110713

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110713.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-110713

Upstream

CVE-2026-110713

Published

2026-10-15T00:00:00Z

Modified

2026-10-17T12:59:52Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_fs_volume_info and smb2_decode_file_fs_attribute_info that allows malicious SMB servers to read past reply buffers. Attackers controlling a server or intercepting unsigned sessions can send crafted QUERY_INFO replies with missing or oversized name lengths to crash the client.

References

Affected packages

Ubuntu:26.10 / libsmb2

Package

Name: libsmb2
Purl: pkg:deb/ubuntu/libsmb2?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

6.*

6.2+dfsg-3

6.2+dfsg-4

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libsmb2-6",
            "binary_version":  "6.2+dfsg-4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110713.json"

Ubuntu:26.04:LTS / libsmb2