{"id":"CVE-2025-13397","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-13397","generatedAt":"2026-10-28T01:47:30.346Z","title":"A security vulnerability has been detected in mrubyc up to 3.4.","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.","published":"2025-11-19T16:15:47.000Z","lastModified":"2026-10-19T13:10:00.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":4.8,"severity":"MEDIUM","vector":"CVSS: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"},"cwe":["CWE-404","CWE-476"],"affected":["s-itoc/mruby\\/c"],"epss":{"score":0.00156,"percentile":0.04659,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/mrubyc/mrubyc/commit/009111904807b8567262036bf45297c3da8f1c87","tags":["Patch"],"source":"cna@vuldb.com"},{"url":"https://github.com/mrubyc/mrubyc/issues/244","tags":["Issue Tracking"],"source":"cna@vuldb.com"},{"url":"https://github.com/mrubyc/mrubyc/issues/244#issuecomment-3400382026","tags":["Issue Tracking"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.332925","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.332925","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.692130","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-13397","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}