This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-110713 →

UBUNTU-CVE-2026-110713

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 al...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:26.10 libsmb2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS libsmb2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

report ubuntu.com
report cve.org
report github.com
report github.com
report github.com
report hackmd.io
report vulncheck.com