CVE-2025-57052

CRITICAL 1 PoC
INFO Priority: 0.08 BB Relevance: 90/100
Published: 2025-09-03 Modified: 2026-11-07 First seen: 2026-11-07 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
davegamble cjson 1.5.0 – 1.7.18

Proof of Concept (1)

Bug Bounty Relevance

90 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.77%
Raw Score 0.007700
Percentile 55.9%
Date 2026-11-10

EPSS Trend

2026-11-10
0.00770
2026-11-09
0.00770
2026-11-08
0.00743
2026-11-07
0.00743

Intelligence Sources

nvd ref →