Vulnerability DatabaseCVE-2026-110713
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CVE-2026-110713
Published:October 14, 2026
Updated:October 15, 2026
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.
Related Resources (7)
https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-file-system-info-decoders
https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-filesystem-info.c#L71
https://nvd.nist.gov/vuln/detail/CVE-2026-110713
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110713.json
https://github.com/sahlberg/libsmb2
https://github.com/sahlberg/libsmb2/commit/dd0bbdee24bb56f7ec95431afc07ce0a666533f7
https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Read
CWE-125
EPSS
Base Score:
0.47