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Vulnerability · Published Jan 21, 2022 · Assigned by mitre

CVE-2021-46242

High 8.8

In plain English

A high-severity security flaw in the hdf5 package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.2%top 30.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

HDF5 v1.13.1-1 was discovered to contain a heap-use-after free via the component H5AC_unpin_entry.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12hdf5no fix listedDEBIAN-CVE-2021-46242
Debian:13hdf51.14.5+repack-1DEBIAN-CVE-2021-46242
Debian:14hdf51.14.5+repack-1DEBIAN-CVE-2021-46242
Ubuntu:22.04:LTShdf5no fix listedUBUNTU-CVE-2021-46242
Ubuntu:24.04:LTShdf5no fix listedUBUNTU-CVE-2021-46242
Ubuntu:25.10kisspliceno fix listedUBUNTU-CVE-2021-46242
Ubuntu:26.10kisspliceno fix listedUBUNTU-CVE-2021-46242
Ubuntu:22.04:LTSparaviewno fix listedUBUNTU-CVE-2021-46242
Ubuntu:24.04:LTSparaviewno fix listedUBUNTU-CVE-2021-46242
Ubuntu:25.10paraviewno fix listedUBUNTU-CVE-2021-46242
Ubuntu:26.10paraviewno fix listedUBUNTU-CVE-2021-46242
Ubuntu:25.10xdmfno fix listedUBUNTU-CVE-2021-46242
Ubuntu:26.10xdmfno fix listedUBUNTU-CVE-2021-46242

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References