Vulnerability · Published Oct 26, 2026 · Assigned by VulnCheck
CVE-2026-116736libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_values_array
Medium 6.1
In plain English
A medium-severity out-of-bounds read in libpff from libyal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.1%top 97.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | libpff | no fix listed | UBUNTU-CVE-2026-116736 |
| Ubuntu:24.04:LTS | libpff | no fix listed | UBUNTU-CVE-2026-116736 |
| Ubuntu:26.04:LTS | libpff | no fix listed | UBUNTU-CVE-2026-116736 |
| Ubuntu:26.10 | libpff | no fix listed | UBUNTU-CVE-2026-116736 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
- GitHub Issue #172 issue-tracking
- https://github.com/libyal/libpff product
- https://github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266 patch
- https://github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c#L8858-L8895 technical-description
- https://hackmd.io/@haindpwn/libpff-table-parsing-oob-reads third-party-advisory
- VulnCheck Advisory: libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_values_array third-party-advisory