Medium severity5.3NVD Advisory· Published Nov 7, 2025· Updated Apr 29, 2026
CVE-2025-12875
CVE-2025-12875
Description
A weakness has been identified in mruby 3.4.0. This vulnerability affects the function ary_fill_exec of the file mrbgems/mruby-array-ext/src/array.c. Executing a manipulation of the argument start/length can lead to out-of-bounds write. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 93619f06dd378db6766666b30c08978311c7ec94. It is best practice to apply a patch to resolve this issue.
Affected products
1Patches
193619f06dd37https://github.com/makesoftwaresafe/mrubyvia nvd-ref
Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
7- github.com/makesoftwaresafe/mruby/commit/93619f06dd378db6766666b30c08978311c7ec94nvdPatch
- github.com/mruby/mruby/issues/6650nvdPatch
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- github.com/mruby/mruby/issues/6650nvdIssue Tracking
- github.com/mruby/mruby/issues/6650nvdIssue Tracking
- vuldb.comnvdPermissions RequiredVDB Entry
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