CVE-2022-25972Public exploit

Code execution via unchecked GIF decompression offset

Published Aug 22, 2022 · Updated Sep 17, 2024

An out-of-bounds write in HDF5 1.10.4 gif2h5 allows local users to execute code when a crafted GIF is converted. In decompress.c, gif2h5 uses the GIF code size to calculate heap-buffer write offsets without verifying that the resulting location remains within bounds. Execution requires a user or local process to invoke the converter on attacker-controlled input, and resulting code runs with that process's privileges.

CVSS severity7.8
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in HDF5 1.10.4 gif2h5 allows local users to execute code when a crafted GIF is converted. In decompress.c, gif2h5 uses the GIF code size to calculate heap-buffer write offsets without verifying that the resulting location remains within bounds. Execution requires a user or local process to invoke the converter on attacker-controlled input, and resulting code runs with that process's privileges.

The record

CVE
CVE-2022-25972
Published
Aug 22, 2022
Updated
Sep 17, 2024
Vendor
The HDF Group
Product
HDF5
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.10.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The HDF Group · HDF5version=1.10.4

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8Cisco TalosCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002Malicious File

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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