CVE-2025-49643— Frontend DoS vulnerability due to asymmetric resource consumption
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I. Basic Information for CVE-2025-49643
Vulnerability Information
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Vulnerability Title
Frontend DoS vulnerability due to asymmetric resource consumption
Source: NVD (National Vulnerability Database)
Vulnerability Description
An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不对称的资源消耗(放大攻击)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在安全漏洞，该漏洞源于经过身份验证的用户可通过发送特制参数到/imgstore.php导致CPU负载过高，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-49643
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Zabbix · 2025-12-01 · 3 CVEs total
| CVE-2025-27232 | Frontend arbitrary file read in oauth.authorize action | |
| CVE-2025-49642 | Agent builds for AIX vulnerable to library loading hijacking |
IV. Related Vulnerabilities
Same product: Zabbix
- CVE-2026-23928
Stored XSS vulnerability in the Item history/Plain text widg - CVE-2026-23927
Agent 2 Oracle plugin TNS connection string injection via th - CVE-2026-23926
Stored XSS vulnerability in Host navigator widget maintenanc - CVE-2026-23924
Agent 2 Docker plugin arbitrary file read via Docker API inj - CVE-2026-23923
Unauthenticated arbitrary PHP class instantiation
Same vendor: Zabbix
- CVE-2026-23928
Stored XSS vulnerability in the Item history/Plain text widg - CVE-2026-23927
Agent 2 Oracle plugin TNS connection string injection via th - CVE-2026-23926
Stored XSS vulnerability in Host navigator widget maintenanc - CVE-2026-23924
Agent 2 Docker plugin arbitrary file read via Docker API inj - CVE-2026-23923
Unauthenticated arbitrary PHP class instantiation
Same weakness: CWE-405
- CVE-2026-35665
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook - CVE-2026-35626
OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion v - CVE-2026-25611
Pre-Authentication Memory Exhaustion Denial of Service in Mo - CVE-2026-24324
Denial of service (DOS) vulnerability in SAP BusinessObjects - CVE-2026-0485
Denial of service (DOS) vulnerability in SAP BusinessObjects
V. Comments for CVE-2025-49643
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