CVE-2026-116743
Received Received - Intake

Double Free in libmsiecf via Malformed MSIE Cache Index.dat

Vulnerability report for CVE-2026-116743, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: VulnCheck

Description

libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-27
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
libyal libmsiecf 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-415 The product calls free() twice on the same memory address.

Attack-Flow Graph

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EPSS Chart