CVE-2025-6516

Name	CVE-2025-6516
Description	A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
hdf5 (PTS)	bullseye	1.10.6+repack-4+deb11u1	vulnerable
	bookworm	1.10.8+repack1-1	vulnerable
	sid, trixie	1.14.5+repack-3	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
hdf5	source	(unstable)	(unfixed)

https://github.com/HDFGroup/hdf5/issues/5581