{"id":"CVE-2026-88389","title":"Espruino 2v29 (commit bffc6d0) contains a NULL pointer dereference vulnerability in jslGetRawString() in src/jslex.c","summary":"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_ASS…","severity":"none","published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T15:17:56.687","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88389","references":[{"url":"https://github.com/espruino/Espruino/commit/0db0663ac5201a6fea68094b45da673edec45187","label":"cve@mitre.org"},{"url":"https://github.com/espruino/Espruino/issues/2745","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T15:10:56.370Z","slug":"CVE-2026-88389","body":"## Overview\n\nEspruino 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}