CVE-2026-110712

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Source
https://cve.org/CVERecord?id=CVE-2026-110712
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110712.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-110712
Downstream
Published
2026-10-14T15:01:27Z
Modified
2026-10-28T11:06:33Z
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 smb2_decode_file_all_info
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110712.json"
}
References

Affected packages

Git / github.com/sahlberg/libsmb2

Affected ranges

Type
GIT
Repo
https://github.com/sahlberg/libsmb2
Events
Introduced
916d039e798cd6a6a60dff97e5441853b653d5f9
Fixed
57bee9fb941a39307145b82e4dd1718862f30a74
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2"
                },
                {
                    "last_affected": "6.2"
                }
            ],
            "source": "DESCRIPTION"
        },
        {
            "range": [
                {
                    "fixed": "57bee9fb941a39307145b82e4dd1718862f30a74"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

libsmb2-6.*
libsmb2-6.0
libsmb2-6.1
libsmb2-6.2
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-2026-110712.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "21833396755237234742699538453230800318",
                "134268825765857005615220956202221092130",
                "88598737669040552836061072904276927867",
                "124835152197137261557775531079459133294",
                "243220483439668930474019198295101968544"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-110712-9c9f4588",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/sahlberg/libsmb2/commit/57bee9fb941a39307145b82e4dd1718862f30a74",
        "target": {
            "file": "lib/smb2-data-file-info.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "103277162421815462452799672254664821959",
            "length": 1161
        },
        "id": "CVE-2026-110712-dfacd468",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/sahlberg/libsmb2/commit/57bee9fb941a39307145b82e4dd1718862f30a74",
        "target": {
            "file": "lib/smb2-data-file-info.c",
            "function": "smb2_decode_file_all_info"
        }
    }
]
vanir_signatures_modified 
"2026-10-28T11:06:33Z"