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CVE-2023-53154

cjson: Heap based buffer overflow at cJSON_ParseWithLength function

parse_string in cJSON before 1.7.18 has a heap-based buffer over-read via {"1":1, with no trailing newline if cJSON_ParseWithLength is called.

CVSS 3.1 · 2.9 Low EPSS < 1% KEV · Not listed
Vendors
Cjson Project
Products
Cjson
CVE-2023-26819

cJSON: cJSON rejects a valid text

cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.

CVSS 3.1 · 2.9 Low EPSS < 1% KEV · Not listed
Vendors
Cjson Project
Products
Cjson
CVE-2025-57052

cJSON: out-of-bounds access in decode_array_index_from_pointer() in cJSON_Utils.c via crafted JSON pointer strings

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.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Cjson Project Davegamble
Products
Cjson Cjson
CVE-2024-31755

cjson: segmentation violation trigger through the second parameter of function cJSON_SetValuestring at cJSON.c

cJSON v1.7.17 was discovered to contain a segmentation violation, which can trigger through the second parameter of function cJSON_SetValuestring at cJSON.c.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Cjson Project Redhat
Products
Cjson Satellite Satellite Capsule