CVE-2025-57052

Critical

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductDavegamble Cjson
PublishedSep 3, 2025
First seenSep 3, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
davegamble cjson1.5.0 ≤ v ≤ 1.7.18—

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