CVE-2020-10809

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 73.3% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-03-22 17:42Z6 YR AGO

Last updated

2024-08-04 11:14Z2 YR AGO

Reserved

2020-03-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

69c8b650ccfe5026998b98167cfef6c0fe245f530b313dfe85653344cc915e8b

• research.loginsoft.comhttps://research.loginsoft.com/bugs/heap-overflow-in-decompress-c-hdf5-1-13-0/x_refsource_MISC
• github.comhttps://github.com/Loginsoft-Research/hdf5-reports/tree/master/Vuln_1x_refsource_MISC
• bitbucket.hdfgroup.orghttps://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse/release_docs/RELEASE.txtx_refsource_MISC