CVEvulnerability

CVE-2026-88388

7.5 HIGH Published 2026-09-24 Modified 2026-09-25 Official page ↗
Status
Deferred
Published
2026-09-24
Last modified
2026-09-25
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-121

Description

Espruino 2v29 (commit bffc6d0) contains a stack-based buffer overflow vulnerability in the JavaScript error stack-trace handling path on 64-bit builds. A remote attacker can supply JavaScript input that triggers an exception and reaches jslPrintTokenLineMarker(), which passes the address of a 4-byte int column variable to jsvGetLineAndCol() as a size_t pointer. jsvGetLineAndCol() performs an 8-byte write through the mismatched pointer, overwriting adjacent stack memory.

Related

Weakness · CWE (1)

  • CWE-121 Stack-based Buffer Overflow weakness

References