CVE-2025-2912Public exploit

Application crash via unchecked message-header pointer

Published Mar 28, 2025 · Updated Jul 24, 2025

Heap buffer overflow in HDF5 1.14.0 through 1.14.6 allows local users to crash an application by processing a crafted HDF5 file. H5O_msg_flush subtracts an eight-byte message-header size from mesg->raw without validating the resulting pointer, then writes one byte beyond the allocated heap buffer. The supplied proof of concept requires local execution and a crafted file; the demonstrated consequence is an AddressSanitizer-detected crash, not code execution.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in HDF5 1.14.0 through 1.14.6 allows local users to crash an application by processing a crafted HDF5 file. H5O_msg_flush subtracts an eight-byte message-header size from mesg->raw without validating the resulting pointer, then writes one byte beyond the allocated heap buffer. The supplied proof of concept requires local execution and a crafted file; the demonstrated consequence is an AddressSanitizer-detected crash, not code execution.

The record

CVE
CVE-2025-2912
Published
Mar 28, 2025
Updated
Jul 24, 2025
Vendor
The HDF Group
Product
HDF5
Classifications
CWE-122, CWE-119, CWE-787, T1499
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

1.9VulDB CNACVSS: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
1.7VulDB CNAAV:L/AC:L/Au:S/C:N/I:N/A:P
3.3VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.3NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-122Heap-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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