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CVE-2026-111134

6.1 · MEDIUM

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 sh…

Published Oct 15, 2026CWE-125EPSS 0.13%

Overview

CVE-2026-111134 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/libyal/libfwsiGitHubgithub.com/libyal/libfwsi/blob/2f2aba25b888f37314a39d8c3e71c0e3ced56e59/libfwsi/libfwsi_mtp_file_entry_values.c#L245-L267Refhackmd.io/@haind-pwn/libfwsi-mtp-values-oob-readRefwww.vulncheck.com/advisories/libfwsi-through-20260522-heap-out-of-bounds-read-via-libfwsi-mtp-file-entry-values-read-dataRefhackmd.io/@haind-pwn/libfwsi-mtp-values-oob-read

How CyberStrike helps

Frequently asked questions

What is CVE-2026-111134?

CVE-2026-111134 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-111134?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-111134?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-111134?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-111134 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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