CVE-2025-57052

PoC —

CVSS 3.1

9.8 critical

EPSS

<1%p53

Published

Sep 3, 2025 (Sep 3, 2025)

Modified

Jun 17, 2026

Description

cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote attackers to bypass array bounds checking and access restricted data via malformed JSON pointer strings containing alphanumeric characters.

Vendors: davegamble
Products: cjson
Weakness: CWE-125, CWE-129
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.7%)

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