How severe is CVE-2020-10812?

CVE-2020-10812 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-10812 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-2020-10812?

CVE-2020-10812 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10812?

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

When was CVE-2020-10812 published?

CVE-2020-10812 was published on 2020-03-22 and last updated on 2026-06-17.

CVE-2020-10812

CVE-2020-10812 is a medium-severity vulnerability in Hdfgroup Hdf5 with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Hdfgroup Hdf5
Published: 2020-03-22
Last modified: 2026-06-17

Description

An issue was discovered in HDF5 through 1.12.0. A NULL pointer dereference exists in the function H5F_get_nrefs() located in H5Fquery.c. It allows an attacker to cause Denial of Service.

Frequently asked questions

What is CVE-2020-10812?: An issue was discovered in HDF5 through 1.12.0. A NULL pointer dereference exists in the function H5F_get_nrefs() located in H5Fquery.c. It allows an attacker to cause Denial of Service.
How severe is CVE-2020-10812?: CVE-2020-10812 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-10812 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-2020-10812?: CVE-2020-10812 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10812?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-10812 published?: CVE-2020-10812 was published on 2020-03-22 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Hdfgroup Hdf5

CVE-2024-32608 — Critical (CVSS 9.8): HDF5 library through 1.14.3 has memory corruption in H5A__close resulting in the corruption of the instruction pointer…
CVE-2024-33874 — Critical (CVSS 9.8): HDF5 Library through 1.14.3 has a heap buffer overflow in H5O__mtime_new_encode in H5Omtime.c.
CVE-2024-32621 — Critical (CVSS 9.8): HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5HG_read in H5HG.c (called from…
CVE-2024-32615 — Critical (CVSS 9.8): HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5Z__nbit_decompress_one_byte in H5Znbit.c, caused…
CVE-2024-32611 — Critical (CVSS 9.8): HDF5 Library through 1.14.3 may use an uninitialized value in H5A__attr_release_table in H5Aint.c.
CVE-2024-29164 — Critical (CVSS 9.8): HDF5 through 1.14.3 contains a stack buffer overflow in H5R__decode_heap, resulting in the corruption of the…

All CVEs affecting Hdfgroup Hdf5 →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →