CVE-2025-2915Public exploit

Process crash via unchecked metadata overlap arithmetic

Published Mar 28, 2025 · Updated Jul 24, 2025

Heap-based buffer overflow in HDF5 1.14.0 through 1.14.6 allows local users to crash a parsing process with a crafted HDF5 file. H5F__accum_free subtracts an unchecked overlap_size from the metadata accumulator size and passes the resulting length and shifted source pointer to memmove, causing an out-of-bounds heap read. Execution requires a local low-privileged user to cause an HDF5-linked process to open and close the crafted file; the demonstrated consequence is a process crash.

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

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Heap-based buffer overflow in HDF5 1.14.0 through 1.14.6 allows local users to crash a parsing process with a crafted HDF5 file. H5F__accum_free subtracts an unchecked overlap_size from the metadata accumulator size and passes the resulting length and shifted source pointer to memmove, causing an out-of-bounds heap read. Execution requires a local low-privileged user to cause an HDF5-linked process to open and close the crafted file; the demonstrated consequence is a process crash.

The record

CVE
CVE-2025-2915
Published
Mar 28, 2025
Updated
Jul 24, 2025
Vendor
The HDF Group
Product
HDF5
Classifications
CWE-122, CWE-787, CWE-119, T1203
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

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
1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P
3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1203Exploitation for Client Execution

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo