All vulnerabilities
CVE-2026-110712

libsmb2 through 6.2 Heap Out-of-Bounds Read via smb2_decode_file_all_info

sahlberg libsmb2
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 14 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.45%Chance of exploitation activity in the next 30 days, higher than 37% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published14 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_all_info that allows malicious SMB servers to crash clients by sending an unchecked FileNameLength. Attackers controlling the server or performing man-in-the-middle on unsigned sessions can return crafted FileAllInformation replies to smb2_stat or smb2_fstat calls, crashing the client.

Text from CVE List

Affected versions 1

  • libsmb2affected: all versions through 6.2CVE List

References 5