Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mruby | Mruby | 3.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/makesoftwaresafe/mruby/commit/93619f06dd378db6766666b30c08978Patch
- 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 RequiredVDB Entry
- https://vuldb.com/?id.331511Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.680879Third Party AdvisoryVDB Entry
- https://github.com/mruby/mruby/issues/6650Issue Tracking
- https://github.com/mruby/mruby/issues/6650#issuecomment-3430851605Patch
FAQ
What is CVE-2025-12875?
CVE-2025-12875 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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/len...
How severe is CVE-2025-12875?
CVE-2025-12875 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-12875?
Check the references section above for vendor advisories and patch information. Affected products include: Mruby Mruby.