CVE-2026-110714

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Source
https://cve.org/CVERecord?id=CVE-2026-110714
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110714.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-110714
Published
2026-10-14T15:01:29Z
Modified
2026-10-15T02:47:39Z
Severity
  • 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
Summary
libsmb2 through 6.2 Heap Out-of-Bounds Read via decode_acl Integer Underflow
Details

libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted security descriptors. Attackers controlling a server or intercepting unsigned sessions can send an AclSize below 8 in a QUERY_INFO reply, bypassing ACE bounds checks and crashing the client.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-191"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110714.json"
}
References

Affected packages

Git / github.com/sahlberg/libsmb2

Affected ranges

Type
GIT
Repo
https://github.com/sahlberg/libsmb2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "6.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

libsmb2-1.*
libsmb2-1.0
libsmb2-6.*
libsmb2-6.0
libsmb2-6.1
libsmb2-6.2
v1.*
v1.0.0
v2.*
v2.0.0
v3.*
v3.0.0
v4.*
v4.0.0
v5.*
v5.0.0
v6.*
v6.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110714.json"