CVE-2025-57052

Exp

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.

Published: 2025-09-03 Last update: 2025-11-03 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-57052 is rated High Exploit Risk (72.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.27%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-57052

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-57052

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-20 0.16% 0.27% +0.12%
2 2026-03-30 0.12% 0.16% +0.04%
3 2026-01-30 — 0.12% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-57052

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-57052

OS Trackers for CVE-2025-57052

vendor priority summary link
alpine — CVE-2025-57052: 1 source package rows (cjson); 15 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 5, open 10. https://security.alpinelinux.org/vuln/CVE-2025-57052
debian not yet assigned CVE-2025-57052 not yet assigned priority: Debian including 1 source packages (cjson), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-57052
redhat high — https://access.redhat.com/security/cve/CVE-2025-57052
suse high — https://www.suse.com/security/cve/CVE-2025-57052/
ubuntu medium CVE-2025-57052 medium priority: Ubuntu including 1 source packages (cjson), 6 status rows across 6 suites (focal, jammy, noble, plucky, questing, upstream): released 5, ignored 1. https://ubuntu.com/security/CVE-2025-57052

Affected software / configurations for CVE-2025-57052

Vendor Product Version Raw CPE
davegamble cjson >= 1.5.0, <= 1.7.18 cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*

References for CVE-2025-57052

cvelogic Threat Intelligence