CVE Catalog

CVE-2026-116743

MediumCVSS 5.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

2th percentile - higher than 2% of all known CVEs

Summary

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.

Risk Assessment

Potential heap memory corruption and crashes of forensic tools when analyzing malicious index.dat files. This may lead to data loss or instability of the analysis system.

Recommendation

Update libmsiecf to a version later than 20260525 if available, or apply the vendor patch. When analyzing untrusted index.dat files, run tools in an isolated environment.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS