CVE-2026-111134

libfwsi through 20260522 Heap Out-of-Bounds Read via libfwsi_mtp_file_entry_values_read_data

Published Oct 15, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
libfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_file_entry_values_read_data() that allows attackers to read past buffer bounds via crafted MTP file entry shell items. Attackers can embed a 10 to 73 byte shell item with item data size of 44 or more in .lnk files, jump lists or shell bags to crash libfwsi consumers.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Libfwsi Project
Libfwsi Project libfwsi
CPEs cpe:2.3:a:libfwsi_project:libfwsi:-:*:*:*:*:*:*:*
Vendors & Products Libfwsi Project
Libfwsi Project libfwsi
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Libyal
Libyal libfwsi
Vendors & Products Libyal
Libyal libfwsi
Type Values Removed Values Added
Description libfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_file_entry_values_read_data() that allows attackers to read past buffer bounds via crafted MTP file entry shell items. Attackers can embed a 10 to 73 byte shell item with item data size of 44 or more in .lnk files, jump lists or shell bags to crash libfwsi consumers.
Title libfwsi through 20260522 Heap Out-of-Bounds Read via libfwsi_mtp_file_entry_values_read_data
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 27, 2026, 1:30 AM
Reserved
Oct 15, 2026, 5:03 PM
Status
Deferred
Published
Oct 15, 2026, 7:17 PM
Modified
Oct 26, 2026, 3:16 PM