CVE-2026-110713
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 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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read (technical-description, exploit)
- github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/s… (technical-description)
- github.com/sahlberg/libsmb2/commit/dd0bbdee24bb56f7ec95431afc07ce0a666533f7 (patch)
- github.com/sahlberg/libsmb2 (product)
- www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-fi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110713?
- CVE-2026-110713 is a medium-severity vulnerability, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-10-14.
- How severe is CVE-2026-110713?
- Medium severity. CVSS v3 base score is 6.5 out of 10.