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.
History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Libpff Project
Libpff Project libpff
CPEs cpe:2.3:a:libpff_project:libpff:-:*:*:*:*:*:*:*
Vendors & Products Libpff Project
Libpff Project libpff

Mon, 19 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Libyal
Libyal libpff
Vendors & Products Libyal
Libyal libpff

Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
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.
Title Libyal libpff through 20260926 heap out-of-bounds read via libpff_record_entry_get_multi_value
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-14T14:16:40.986Z

Updated: 2026-10-27T01:30:44.414Z

Reserved: 2026-10-14T13:07:19.518Z

Link: CVE-2026-110598

cve-icon Vulnrichment

Updated: 2026-10-14T14:49:34.877Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:11.103

Modified: 2026-10-16T19:18:44.867

Link: CVE-2026-110598

cve-icon Redhat

No data.