What’s Vulnerable › Vulnerabilities

CVE-2025-7069: HDF5 H5FSsection.c H5FS__sect_link_size heap-based overflow

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-04 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FS__sect_link_size of the file src/H5FSsection.c. The manipulation 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 products

• HDF5: 1.14.6

References

• https://github.com/HDFGroup/hdf5/issues/5550
• https://github.com/user-attachments/files/20438481/hdf5_crash_2.txt
• https://vuldb.com/?ctiid.314904
• https://vuldb.com/?id.314904
• https://vuldb.com/?submit.602538
• https://github.com/HDFGroup/hdf5/issues/5550

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