CVE-2026-49014

Code execution via oversized netCDF geometry attribute

Published May 27, 2026 · Updated May 27, 2026

Stack-based buffer overflow in GDAL 3.1.0 through 3.13.0 allows attackers to execute arbitrary code via a crafted NetCDF file. scanForGeometryContainers in frmts/netcdf/netcdfsg.cpp passes an oversized geometry attribute to nc_get_att_text for a fixed-size stack buffer without first checking the attribute length. Processing attacker-controlled NetCDF input with the netCDF driver is required, and successful exploitation runs code in the affected GDAL process.

CVSS severity7.8
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in GDAL 3.1.0 through 3.13.0 allows attackers to execute arbitrary code via a crafted NetCDF file. scanForGeometryContainers in frmts/netcdf/netcdfsg.cpp passes an oversized geometry attribute to nc_get_att_text for a fixed-size stack buffer without first checking the attribute length. Processing attacker-controlled NetCDF input with the netCDF driver is required, and successful exploitation runs code in the affected GDAL process.

The record

CVE
CVE-2026-49014
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Open Source Geospatial Foundation
Product
GDAL
Classifications
CWE-121, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=3.1.0 <=3.13.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Open Source Geospatial Foundation · GDALversion=3.1.0 <=3.13.0

Published CVSS scores

7.4MITRECVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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