{"id":"CVE-2026-88389","published":"2026-09-25T15:17:56.687","lastModified":"2026-09-29T04:18:01.190","description":"Espruino 2v29 (commit bffc6d0) contains a NULL pointer dereference vulnerability in jslGetRawString() in src/jslex.c. Crafted raw/binary string input can cause the lexer to pass a NULL iterator target to jsvLockAgain(). In RELEASE/NO_ASSERT builds, the missing assertion guard allows a write through the NULL pointer, resulting in memory corruption and application termination or denial of service.","cvssScore":6.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-476"],"vendors":[],"products":[],"references":[{"url":"https://github.com/espruino/Espruino/commit/0db0663ac5201a6fea68094b45da673edec45187","tags":[]},{"url":"https://github.com/espruino/Espruino/issues/2745","tags":[]},{"url":"https://github.com/espruino/Espruino/issues/2745","tags":[]}],"exploitRefs":[{"url":"https://github.com/espruino/Espruino/commit/0db0663ac5201a6fea68094b45da673edec45187","tags":[]},{"url":"https://github.com/espruino/Espruino/issues/2745","tags":[]},{"url":"https://github.com/espruino/Espruino/issues/2745","tags":[]}],"hasPoc":true,"ai":null}