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CVE-2024-32623· NVD / CVE Program· CNA mitre

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5VM_array_fill in H5VM.c (called from H5S_select_elements in H5Spoint.

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5VM_array_fill in H5VM.c (called from H5S_select_elements in H5Spoint.c).

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
May 14, 2024
Updated
Jun 17, 2026
EPSS
0.9% · 59th percentile
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Report tools

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Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
hdfgrouphdf5

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hdfgroup hdf5before 1.14.4

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12hdf5all versions—
Debian:13hdf5before 1.14.5+repack-11.14.5+repack-1

Same product

hdfgroup: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-13876An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan
  • CVE-2018-13874An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan
  • CVE-2018-13873An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan
  • CVE-2018-13872An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan
  • CVE-2018-13871An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan
  • CVE-2018-13870An issue was discovered in the HDF HDF5 1.8.20 library.
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Azure Linux 3.0 ARM1.14.4.3-1 · hdf5Microsoft (MSRC)
Azure Linux 3.0 x641.14.4.3-1 · hdf5Microsoft (MSRC)
CBL Mariner 2.0 ARM1.14.4-1 · hdf5Microsoft (MSRC)
CBL Mariner 2.0 x641.14.4-1 · hdf5Microsoft (MSRC)
debian:hdf51.14.5+repack-1 · Debian:13Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-291570 days apartHDF5 through 1.14.3 contains a heap buffer overflow in H5HG_read, resulting in the corruption of the instruction pointer and causing denial
    39Monitor
  • CVE-2024-326210 days apartHDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5HG_read in H5HG.c (called from H5VL__native_blob_get in H5VLnative_bl
    39Monitor
  • CVE-2024-326050 days apartHDF5 Library through 1.14.3 has a heap-based buffer over-read in H5VM_memcpyvv in H5VM.c (called from H5D__compact_readvv in H5Dcompact.c).
    35Monitor
  • CVE-2024-326170 days apartHDF5 Library through 1.14.3 contains a heap-based buffer over-read caused by the unsafe use of strdup in H5MM_xstrdup in H5MM.c (called from
    35Monitor
  • CVE-2024-338730 days apartHDF5 Library through 1.14.3 has a heap-based buffer overflow in H5D__scatter_mem in H5Dscatgath.c.
    35Monitor
  • CVE-2024-338770 days apartHDF5 Library through 1.14.3 has a heap-based buffer overflow in H5T__conv_struct_opt in H5Tconv.c.
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records