CVE-2026-116735
libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_6c_record_entries
libyal libpff
CVSS
6.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
libpff through 20260926 contains an off-by-one bounds check in libpff_table_read_6c_record_entries that allows attackers to trigger a heap out-of-bounds read via crafted 6c table record entries. Attackers can supply crafted PST, OST or PAB files to applications like pffexport or pypff to read adjacent heap memory or cause crashes.
Text from CVE List
Affected versions 1
- libpffaffected: all versions through 20260926CVE List
References 6
- github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266Fixvia CVE List
- hackmd.io/@haindpwn/libpff-table-parsing-oob-readsAdvisoryvia CVE List
- vulncheck.com/advisories/libpff-through-20260926-heap-out-of-bounds-read-via-libpff-table-read-6c-record-entriesAdvisoryvia CVE List
- github.com/libyal/libpff/issues/172Referencevia CVE List
- github.com/libyal/libpffReferencevia CVE List
- github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c#L5431-L5445Referencevia CVE List