Paper/Archive/CVE-2026-4738

CVE-2026-4738

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

EPSS 0.3%CVSS 9.4

critical.is priorityof 100

CVSS 9.4 (CNA)9.4 / 10 × 3028.2 Not in CISA KEV+300.0 EPSS percentile 18.1.181 × 203.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

gdal< 3.11.03.11.0CNA

Scores by source

GovTech CSG (CNA)9.4CVSS: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 ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchgithub.com/OSGeo/gdal/pull/12244