CVE-2025-13397
A security vulnerability has been detected in mrubyc up to 3.4.
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 security vulnerability has been detected in mrubyc up to 3.4. This impacts the function mrbc_raw_realloc of the file src/alloc.c. Such manipulation of the argument ptr leads to null pointer dereference. An attack has to be approached locally. The name of the patch is 009111904807b8567262036bf45297c3da8f1c87. It is advisable to implement a patch to correct this issue.
- CVSS 4.0
- 4.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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/M
- EPSS
- 0.16% probability · 5th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-404, CWE-476
- Affected
- s-itoc/mruby\/c
- Source
- cna@vuldb.com
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/mrubyc/mrubyc/commit/009111904807b8567262036bf45297c3da8f1c87Patch
- https://github.com/mrubyc/mrubyc/issues/244Issue Tracking
- https://github.com/mrubyc/mrubyc/issues/244#issuecomment-3400382026Issue Tracking
- https://vuldb.com/?ctiid.332925Permissions Required, VDB Entry
- https://vuldb.com/?id.332925Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.692130Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.