CVE-2026-116743

libyal libmsiecf through 20260525 Double Free via libmsiecf_url_values_read_data

MEDIUM
5.5
CVSS Score
Published: October 26, 2026 at 09:52 PM UTC
Updated: October 27, 2026 at 04:04 PM UTC
1 product affected across 1 vendorlibmsiecf

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

5.5MEDIUMVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-415

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