What’s Vulnerable › Vulnerabilities

CVE-2021-37501

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-03 · updated 2026-06-17
• Weakness: CWE-787

Description

Buffer Overflow vulnerability in HDFGroup hdf5-h5dump 1.12.0 through 1.13.0 allows attackers to cause a denial of service via h5tools_str_sprint in /hdf5/tools/lib/h5tools_str.c.

Affected products

• HDF5: from 1.12.0 through 1.13.0

References

• https://github.com/HDFGroup/hdf5
• https://github.com/HDFGroup/hdf5/issues/2458
• https://github.com/ST4RF4LL/Something_Found/blob/main/HDF5_v1.13.0_h5dump_heap_overflow.md
• https://github.com/HDFGroup/hdf5
• https://github.com/HDFGroup/hdf5/issues/2458
• https://github.com/ST4RF4LL/Something_Found/blob/main/HDF5_v1.13.0_h5dump_heap_overflow.md

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