CVE-2021-46243
CVE-2021-46243 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-476.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-476
- Affected product: Hdfgroup Hdf5
- Published:
- Last modified:
Description
An untrusted pointer dereference vulnerability exists in HDF5 v1.13.1-1 via the function H5O__dtype_decode_helper () at hdf5/src/H5Odtype.c. This vulnerability can lead to a Denial of Service (DoS).
Frequently asked questions
- What is CVE-2021-46243?
- An untrusted pointer dereference vulnerability exists in HDF5 v1.13.1-1 via the function H5O__dtype_decode_helper () at hdf5/src/H5Odtype.c. This vulnerability can lead to a Denial of Service (DoS).
- How severe is CVE-2021-46243?
- CVE-2021-46243 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-2021-46243 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-46243?
- CVE-2021-46243 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-46243?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-46243 published?
- CVE-2021-46243 was published on 2022-01-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hdfgroup:hdf5:1.13.1-1:*:*:*:*:*:*:*
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