Medium severity · published Oct 26, 2026
CVE-2026-116736
libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_values_array
New
6.1
CVSS
0.1%
EPSS
No
On KEV
Description
Libpff through 20260926 contains a heap out-of-bounds read vulnerability in libpff_table_read_values_array because a 7c column definition's values_array_size is not checked against remaining buffer bytes. Attackers can supply a crafted PST, OST or PAB file to make applications read adjacent heap memory into record entry values or crash.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
libpff · libyal
through 20260926 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116736
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116736
github.com
https://github.com/libyal/libpff
github.com
https://github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c#L8858-L8895
github.com
https://github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266
github.com
https://github.com/libyal/libpff/issues/172
hackmd.io
https://hackmd.io/@haindpwn/libpff-table-parsing-oob-reads
www.vulncheck.com
https://www.vulncheck.com/advisories/libpff-through-20260926-heap-out-of-bounds-read-via-libpff-table-read-values-array
More from libpff
6.1
CVE-2026-116735
libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_6c_record_entries
6.1
CVE-2026-110598
Libyal libpff through 20260926 heap out-of-bounds read via libpff_record_entry_get_multi_value