VulnerabilityModified
CVE-2025-12875
A weakness has been identified in mruby 3.4.0.
LOW 1.9EPSS 0.16%
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 1.9 LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-787
- Affected
- mruby/mruby
- Source
- cna@vuldb.com
References
- https://github.com/makesoftwaresafe/mruby/commit/93619f06dd378db6766666b30c08978311c7ec94Patch
- https://github.com/mruby/mruby/
- https://github.com/mruby/mruby/issues/6650Issue Tracking
- https://github.com/mruby/mruby/issues/6650#event-20443453808Issue Tracking
- https://github.com/mruby/mruby/issues/6650#issuecomment-3430851605Patch
- https://vuldb.com/?ctiid.331511Permissions Required, VDB Entry
- https://vuldb.com/?id.331511Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.680879Third Party Advisory, VDB Entry
- https://github.com/mruby/mruby/issues/6650Issue Tracking
- https://github.com/mruby/mruby/issues/6650#issuecomment-3430851605Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.