# CVE-2025-57052: 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.

CVE-2025-57052 is fixed in 3 products on 1 platform, first by libcjson1 1.7.10-1.1ubuntu0.1~esm1, released September 3, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2025-57052
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0074
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 3, 2025
- Weakness: Out-of-bounds Read
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-57052

## Description

cjson - security update

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cJSON opensuse-leap 16.0 | 1.7.19-160000.1.1 | [OPENSUSE-SU-2026:20340-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20340-1.md) | Mar 11, 2026 |
| Linux | cJSON sles 15.7 | 1.7.19-150700.3.3.1 | [SUSE-SU-2025:03520-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03520-1.md) | Oct 10, 2025 |
| Linux | cjson Debian 11.6 (bullseye) | 1.7.14-1+deb11u3 | [DLA-4304-1](https://patchblox.com/security/data/fix/linux/dla-4304-1.md) | Sep 18, 2025 |
| Linux | cjson Debian 12.15 (bookworm) | 1.7.15-1+deb12u4 | [DSA-6001-1](https://patchblox.com/security/data/fix/linux/dsa-6001-1.md) | Sep 14, 2025 |
| Linux | cjson Debian 13.5 (trixie) | 1.7.18-3.1+deb13u1 | [DSA-6001-1](https://patchblox.com/security/data/fix/linux/dsa-6001-1.md) | Sep 14, 2025 |
| Linux | cjson Debian 14 | 1.7.19-1 | [DEBIAN-CVE-2025-57052](https://patchblox.com/security/data/fix/linux/debian-cve-2025-57052.md) | Sep 3, 2025 |
| Linux | libcjson1 Ubuntu 20.04 LTS (focal) | 1.7.10-1.1ubuntu0.1~esm1 | [libcjson1 1.7.10-1.1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcjson1-1.7.10-1.1ubuntu0.1-esm1.md) | Sep 3, 2025 |
| Linux | libcjson1 Ubuntu 22.04.1 LTS (jammy) | 1.7.15-1ubuntu0.1 | [libcjson1 1.7.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcjson1-1.7.15-1ubuntu0.1.md) | Sep 3, 2025 |
| Linux | libcjson1 Ubuntu 24.04.5 LTS (noble) | 1.7.17-1ubuntu0.1~esm3 | [libcjson1 1.7.17-1ubuntu0.1~esm3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcjson1-1.7.17-1ubuntu0.1-esm3.md) | Sep 3, 2025 |
| Linux | libcjson1 Ubuntu 25.10 (questing) | 1.7.18-3.1ubuntu0.1 | [libcjson1 1.7.18-3.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcjson1-1.7.18-3.1ubuntu0.1.md) | Sep 3, 2025 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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