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.

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Fri, 25 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
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.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-25T14:07:39.290Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88389

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-09-25T15:17:56.687

Modified: 2026-09-25T15:17:56.687

Link: CVE-2026-88389

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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