CVE-2026-4738 CRITICAL

CVE-2026-4738: GDAL Bundled zlib (inftree9.c) Pointer Offset Optimization Undefined Behavior Allows Heap Corruption or Remote Code Execution

Vendor Osgeo
Product gdal
Weakness CWE-119
Published March 24, 2026
Last update March 24, 2026
View on NVD All CVEs

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 24, 2026 CVE published
March 24, 2026 Record updated