How severe is CVE-2018-17234?

CVE-2018-17234 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-17234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17234?

CVE-2018-17234 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17234?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-17234 published?

CVE-2018-17234 was published on 2018-09-20 and last updated on 2026-06-17.

CVE-2018-17234

CVE-2018-17234 is a medium-severity vulnerability in Hdfgroup Hdf5 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-772.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-772
Affected product: Hdfgroup Hdf5
Published: 2018-09-20
Last modified: 2026-06-17

Description

Memory leak in the H5O__chunk_deserialize() function in H5Ocache.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service (memory consumption) via a crafted HDF5 file.

Frequently asked questions

What is CVE-2018-17234?: Memory leak in the H5O__chunk_deserialize() function in H5Ocache.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service (memory consumption) via a crafted HDF5 file.
How severe is CVE-2018-17234?: CVE-2018-17234 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-17234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17234?: CVE-2018-17234 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17234?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-17234 published?: CVE-2018-17234 was published on 2018-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*

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