CVE-2025-7069
CSIRTS triage
- What
- A heap-based buffer overflow exists in H5FSsection.c H5FS__sect_link_size function.
- Who is affected
- Applications using HDF5 library to process untrusted or malicious HDF5 files.
- Urgency
- Low severity (CVSS 3.3) suggests limited immediate impact, but memory corruption warrants timely patching.
- Action
- Update HDF5 library to version containing the fix for heap overflow in section handling.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2025-7069
Get an email if CVE-2025-7069 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
Advisory coverage (1)
- lowCVE-2025-7069: HDF5 H5FSsection.c H5FS__sect_link_size heap-based overflowmsrc · 2026-08-06
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2025-7069)