CVE-2026-55371

Katalog CVE

CVSS 6.9 · Medium EPSS 0,17%

Kerentanan Improper Input Validation. Skor CVSS 4.0 6.9 (Medium) menurut github.com.

Deskripsi (NVD)

OpenEXR is the reference implementation and specification for the EXR high-dynamic-range image file format, widely used in the motion picture industry. Versions 3.4.0 through 3.4.12 contain a NULL pointer dereference in the OpenEXRCore function exr_attr_set_bytes(). The public setter validates the top-level exr_attr_bytes_t value pointer but does not verify that the nested type_hint pointer is non-NULL when hint_length is greater than zero. When a caller supplies a positive hint_length together with a NULL type_hint, exr_attr_bytes_create() allocates a destination type-hint buffer and then copies from the NULL source pointer, causing a deterministic crash. The flaw is reachable through the public OpenEXRCore C API and results in a denial of service. The issue is fixed in version 3.4.13.

Rincian

Terbit di NVD

25 Agustus 2026

Terakhir diubah

12 Oktober 2026

Status NVD

Deferred

CVSS 4.0

6.9 (Medium), sumber github.com
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-xx72-f24p-cf6r