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Vulnerability · Published Mar 28, 2025 · Assigned by VulDB

CVE-2025-2924HDF5 H5HLcache.c H5HL__fl_deserialize heap-based overflow

Low 3.3

In plain English

A low-severity heap buffer overflow in HDF5. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as problematic, was found in HDF5 up to 1.14.6. This affects the function H5HL__fl_deserialize of the file src/H5HLcache.c. The manipulation of the argument free_block leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12hdf5no fix listedDEBIAN-CVE-2025-2924
Debian:13hdf5no fix listedDEBIAN-CVE-2025-2924
Debian:14hdf52.1.0+repack-1DEBIAN-CVE-2025-2924
Ubuntu:22.04:LTShdf5no fix listedUBUNTU-CVE-2025-2924
Ubuntu:24.04:LTShdf5no fix listedUBUNTU-CVE-2025-2924
Ubuntu:25.10hdf5no fix listedUBUNTU-CVE-2025-2924
Ubuntu:26.04:LTShdf5no fix listedUBUNTU-CVE-2025-2924
Ubuntu:26.10hdf5no fix listedUBUNTU-CVE-2025-2924

Affected products (as reported)

VendorProductVersions
n/a HDF5 1.14.01.14.11.14.21.14.31.14.41.14.51.14.6

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

References