CVE-2023-42276

CRITICAL

hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.

Affects 1 product across 1 vendor.

CVSS 3.19.8
EPSS0.9%
Percentile59th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-120: Buffer Copy without Checking Size (Classic Buffer Overflow)

Program copies data to a buffer without verifying the source data fits within the destination.

Related Attack Patterns (CAPEC)
CAPEC-8 Buffer Overflow in an API Call
via CWE-120
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-120
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-120
CAPEC-14 Client-side Injection-induced Buffer Overflow
via CWE-120
CAPEC-24 Filter Failure through Buffer Overflow
via CWE-120
Show all 13

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A critical buffer overflow vulnerability exists in hutool v5.8.21 through the jsonArray component, which could allow an attacker to execute arbitrary code or cause a denial of service.

BSID: BS-2023-GLOBAL-055999-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2023-42276?
A critical buffer overflow vulnerability exists in hutool v5.8.21 through the jsonArray component, which could allow an attacker to execute arbitrary code or cause a denial of service.
What is the CVSS score for CVE-2023-42276?
CVE-2023-42276 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 0.9%.
Is CVE-2023-42276 actively exploited?
No confirmed active exploitation of CVE-2023-42276 as of 2026-05-30.
How do I remediate CVE-2023-42276?
Priority: IMMEDIATE. PSIRT: [email protected]
What systems are affected by CVE-2023-42276?
CVE-2023-42276 affects Hutool Hutool.
Vulnerability Details
CVE IDCVE-2023-42276
BSIDBS-2023-GLOBAL-055999-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2023-09-08
Last Modified2025-09-12
ICS Relevance15%
Weakness (CWE)
Buffer Copy without Checking Size (Classic Buffer Overflow)
SourceNVD
Official Description

hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability is triggered by improper handling of input data in the jsonArray component, leading to a buffer overflow. An attacker could exploit this by providing specially crafted input that exceeds the buffer's allocated memory space.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Hutool Hutool < 5.8.22
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 1133 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hash70e4de7c7e8651f0bde06dcb857953692ed48e1baddf8b7dd2597b61c94d312082883b6c1af37fc2454feff61da6ff9a7a96707a369e5b5d132ea421f3b6c7b2
Related CVEs affecting Hutool
CVE-2023-24163 9.8 SQL Inection vulnerability in Dromara hutool before 5.8.21 allows attacker to... CVE-2023-42277 9.8 hutool v5.8.21 was discovered to contain a buffer overflow via the component ... CVE-2022-22885 9.8 Hutool v5.7.18's HttpRequest was discovered to ignore all TLS/SSL certificate... CVE-2023-24162 9.8 Deserialization vulnerability in Dromara Hutool v5.8.11 allows attacker to ex... CVE-2022-45688 7.5 A stack overflow in the XML.toJSONObject component of hutool-json v5.8.10 all...
View all Hutool CVEs →

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