What’s Vulnerable › Vulnerabilities

CVE-2026-116736: libpff through 20260926 Heap Out-of-Bounds Read via libpff_table_read_values_array

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-31
• Weakness: CWE-125

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 products

• libyal libpff: through 20260926

References

• https://github.com/libyal/libpff
• https://github.com/libyal/libpff/blob/20260926/libpff/libpff_table.c#L8858-L8895
• https://github.com/libyal/libpff/commit/cb83eb38ffdbdfe2c69238fe7ce481ddc8513266
• https://github.com/libyal/libpff/issues/172
• https://hackmd.io/@haindpwn/libpff-table-parsing-oob-reads
• https://www.vulncheck.com/advisories/libpff-through-20260926-heap-out-of-bounds-read-via-libpff-table-read-values-array

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