CVE-2026-26199
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
52/100
Published: 2026-07-20
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
No Auth
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
Active
S:
X
AT:
Present
VC:
None
VI:
None
VA:
High
Description
HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If `H5Iget_name` is invoked on a group id with `0` for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if `H5Iget_name` is invoked in a way where `size` can be forced to zero, and there is important data before the `name` buffer.
Weakness Classification (1)
References & Advisories (2)
Vendor Advisory
Exploit