CVE-2025-57052

State: Published
Severity: 9.8 Critical
Published: Sep 3, 2025
Updated: Nov 3, 2025
Reserved: Aug 17, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-129 Improper Validation of Array Index
CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://x-0r.com/posts/cJSON-Array-Index-Parsing-Vulnerability
https://lists.debian.org/debian-lts-announce/2025/09/msg00019.html

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