CVE-2020-18494
CVE-2020-18494 is a high-severity vulnerability in Hdfgroup Hdf5 with a CVSS 3.x base score of 8.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (53rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Hdfgroup Hdf5
- Published:
- Last modified:
Description
Buffer Overflow vulnerability in function H5S_close in H5S.c in HDF5 1.10.4 allows remote attackers to run arbitrary code via creation of crafted file.
Frequently asked questions
- What is CVE-2020-18494?
- Buffer Overflow vulnerability in function H5S_close in H5S.c in HDF5 1.10.4 allows remote attackers to run arbitrary code via creation of crafted file.
- How severe is CVE-2020-18494?
- CVE-2020-18494 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-18494 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18494?
- CVE-2020-18494 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18494?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-18494 published?
- CVE-2020-18494 was published on 2023-08-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hdfgroup:hdf5:1.10.4:*:*:*:*:*:*:*
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All CVEs affecting Hdfgroup Hdf5 →
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