{"id":"CVE-2026-3387","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3387","generatedAt":"2026-10-27T23:56:12.529Z","title":"A vulnerability has been found in wren-lang wren up to 0.4.0.","description":"A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.","published":"2026-03-01T10:16:01.000Z","lastModified":"2026-06-17T10:43:31.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":1.9,"severity":"LOW","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:P/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":["wren/wren"],"epss":{"score":0.00173,"percentile":0.06661,"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 (0.17%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/oneafter/0122/blob/main/i1220/repro","tags":["Exploit"],"source":"cna@vuldb.com"},{"url":"https://github.com/wren-lang/wren/","tags":["Product"],"source":"cna@vuldb.com"},{"url":"https://github.com/wren-lang/wren/issues/1220","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.348273","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.348273","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.761312","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3387","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."}