CVE-2026-110598

MediumCVSS 6.1/10Last modified Oct 16, 2026

Description

Libyal libpff through 20260926 contains an integer underflow in libpff_record_entry_get_multi_value() that allows attackers to trigger heap out-of-bounds reads via non-monotonic multi-value offsets. Attackers can craft PST, OST or PAB files with decreasing PT_MV_STRING8, PT_MV_UNICODE or PT_MV_BINARY offsets to crash libpff, pypff or pffexport and expose adjacent heap memory.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
libyal	libpff	<= 20260926

References

Timeline

Published: Oct 14, 2026
Last modified: Oct 16, 2026
NVD status: Deferred

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