CVE-2026-116737: medium-severity vulnerability in libyal libphdi
libphdi through 20260902 Heap Out-of-Bounds Read via Extent Data File Path
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.9epss 0.1%
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.
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
Affected products
libyal · libphdipublic PoCs found — 1
cve_referencehackmd.io/@haindpwn/cve-2026-116737-libphdi-extent-data-file-path-heap-oob-readunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/libyal/libphdihttps://github.com/libyal/libphdi/blob/20260902/libphdi/libphdi_data_files.c#L890-L907https://github.com/libyal/libphdi/commit/61e3e1f6b4c5e15ce827b11858ba51f0dba254e3https://github.com/libyal/libphdi/issues/6https://hackmd.io/@haindpwn/cve-2026-116737-libphdi-extent-data-file-path-heap-oob-readhttps://hackmd.io/@haindpwn/libphdi-extent-data-file-path-heap-oob-readhttps://www.vulncheck.com/advisories/libphdi-through-20260902-heap-out-of-bounds-read-via-extent-data-file-path