CVE-2026-116737
libphdi through 20260902 Heap Out-of-Bounds Read via Extent Data File Path
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 26, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 26, 2026
Description
libphdi through 20260902 contains a heap out-of-bounds read vulnerability in libphdi_data_files_get_extent_data_file_path that uses the directory prefix length instead of the basename length. Attackers can supply a crafted Parallels disk image descriptor with a long directory prefix and short basename to crash the process or expose adjacent heap memory.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-131 Incorrect Calculation of Buffer Size
Affected Products
| Product | Versions |
|---|---|
libphdilibyal |
|
References
- GitHub Issue #6issue-tracking
- https://github.com/libyal/libphdiproduct
- https://github.com/libyal/libphdi/commit/61e3e1f6b4c5e15ce827b11858ba51f0dba254e3patch
- https://github.com/libyal/libphdi/blob/20260902/libphdi/libphdi_data_files.c#L890-L907technical-description
- https://hackmd.io/@haindpwn/libphdi-extent-data-file-path-heap-oob-readthird-party-advisory
- VulnCheck Advisory: libphdi through 20260902 Heap Out-of-Bounds Read via Extent Data File Paththird-party-advisory
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