CVE-2026-8087Public exploit

Local memory corruption via unquoted HDF-EOS field names

Published May 7, 2026 · Updated May 7, 2026

Heap-based buffer overflow in GDAL 3.13.0dev-4 allows local users to corrupt process memory via a crafted HDF-EOS file. GDnentries subtracts two bytes for unquoted DataFieldName values, so GDinqfields later appends full names into an undersized heap buffer. Triggering the flaw requires local access to make an HDF4-enabled GDAL process parse the file, causing a process crash or corruption of data in its memory.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in GDAL 3.13.0dev-4 allows local users to corrupt process memory via a crafted HDF-EOS file. GDnentries subtracts two bytes for unquoted DataFieldName values, so GDinqfields later appends full names into an undersized heap buffer. Triggering the flaw requires local access to make an HDF4-enabled GDAL process parse the file, causing a process crash or corruption of data in its memory.

The record

CVE
CVE-2026-8087
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Open Source Geospatial Foundation
Product
GDAL
Classifications
CWE-122, CWE-119, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record 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=3.13.0dev-4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Open Source Geospatial Foundation · GDALversion=3.13.0dev-4

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A: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-122Heap-based Buffer Overflow
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

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Your stack

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