CVE-2025-2925Public exploit

Application crash via zero-length cache-image reallocation

Published Mar 28, 2025 · Updated Jul 24, 2025

Double free in HDF5 1.14.0 through 1.14.6 allows local users to crash applications by processing a crafted HDF5 file. In H5C__load_entry, a zero image-buffer length reaches H5MM_realloc, which frees image before an error path frees the still-non-NULL pointer again. The attacker must supply a malformed file to an application using the library; the demonstrated consequence is process termination.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Double free in HDF5 1.14.0 through 1.14.6 allows local users to crash applications by processing a crafted HDF5 file. In H5C__load_entry, a zero image-buffer length reaches H5MM_realloc, which frees image before an error path frees the still-non-NULL pointer again. The attacker must supply a malformed file to an application using the library; the demonstrated consequence is process termination.

The record

CVE
CVE-2025-2925
Published
Mar 28, 2025
Updated
Jul 24, 2025
Vendor
The HDF Group
Product
HDF5
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.14.0
  2. Affected versionversion=1.14.1
  3. Affected versionversion=1.14.2
  4. Affected versionversion=1.14.3
  5. Affected versionversion=1.14.4
  6. Affected versionversion=1.14.5
  7. Affected versionversion=1.14.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The HDF Group · HDF5version=1.14.0; version=1.14.1; version=1.14.2; version=1.14.3; version=1.14.4; version=1.14.5; version=1.14.6

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-415Double Free
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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