AEGLIX vulnerability intelligence
CVE-2026-34734
HIGH · CVSS 7.8 · Modified
Published: 2026-04-09 · Updated: 2026-10-26 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:18:42.771581+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
HDF5 is software for managing data. In 1.14.1-2 and earlier, a heap-use-after-free was found in the h5dump helper utility. An attacker who can supply a malicious h5 file can trigger a heap use-after-free. The freed object is referenced in a memmove call from H5T__conv_struct. The original object was allocated by H5D__typeinfo_init_phase3 and freed by H5D__typeinfo_term.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.19% · percentile 8.9 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 7.8 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416, CWE-825
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*
Before (exclusive): 1.14.1-2
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwj
Exploit · Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-34734
- https://bugzilla.redhat.com/show_bug.cgi?id=2457034
- https://github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwj
Exploit · Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34734.json