CVE-2025-12875: mruby 3.4.0

CVE-2025-12875. CVSS 3.1 base score 7.8 (HIGH, NVD). EPSS 0.00174 (percentile 0.06422), scored 17-Oct-2026.

Affected technology

mruby · 3.4.0
mruby

Component: Not specified by the source
Function: ary_fill_exec
File: mrbgems/mruby-array-ext/src/array.c

Attack conditions (VulDB, CVSS 4.0): Local · Low privileges required · No user interaction required

What an attacker can do

VulDB’s CVSS 4.0 assessment (base score 1.9/10) rates confidentiality, integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 19-Oct-2026 14:02 UTC

CWE: CWE-119, CWE-787
CCR priority: 31.2 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.00174 · percentile 0.06422 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-19 14:02:10.907757+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-12875.html