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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Fixes
Solution
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Workaround
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References
History
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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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-25T14:07:39.290Z
Reserved: 2026-09-10T00:00:00.000Z
Link: CVE-2026-88389
Vulnrichment
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NVD
Status : Received
Published: 2026-09-25T15:17:56.687
Modified: 2026-09-25T15:17:56.687
Link: CVE-2026-88389
Redhat
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OpenCVE Enrichment
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Weaknesses
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