CVE-2026-4738

CRITICAL

GDAL Bundled zlib (inftree9.c) Pointer Offset Optimization Undefined Behavior Allows Heap Corruption or Remote Code Execution

Title source: cna

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in OSGeo gdal (frmts/zlib/contrib/infback9 modules). This vulnerability is associated with program files inftree9.C‎. This issue affects gdal: before 3.11.0.

References (1)

[Patch] https://github.com/OSGeo/gdal/pull/12244

Scores

CVSS v4 9.4

EPSS 0.0006

EPSS Percentile 18.6%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:L/U:Amber

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-119

Status published

Products (1)

OSGeo/gdal < 3.11.0

Published Mar 24, 2026

Tracked Since Mar 24, 2026