CVE-2026-6643— A stack-based buffer overflow vulnerability in the VPN Clients on the ADM
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-6643
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
A stack-based buffer overflow vulnerability in the VPN Clients on the ADM
Source: NVD (National Vulnerability Database)
Vulnerability Description
A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM. The issue stems from the use of unbounded sscanf() and passing user-controlled data directly to printf(). Due to the lack of PIE and Stack Canary protections, an authenticated remote attacker can exploit these to execute arbitrary code as the web server user. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
ASUSTOR ADM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASUSTOR ADM是中国华芸科技（ASUSTOR）公司的一种所有 ASUSTOR NAS 设备的专用操作系统。 ASUSTOR ADM 4.1.0至4.3.3.RR42版本和5.0.0至5.1.2.REO1版本存在安全漏洞，该漏洞源于VPN客户端使用无界sscanf函数并将用户控制数据直接传递给printf函数，可能导致经过身份验证的远程攻击者以Web服务器用户身份执行任意代码。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ASUSTOR Inc. | ADM | 4.1.0 ~ 4.3.3.RR42 | - |
II. Public POCs for CVE-2026-6643
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-6643
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: ADM
- CVE-2026-6644
A command injection vulnerability was found in the PPTP VPN - CVE-2026-3179
A path traversal vulnerability was found in the FTP Backup o - CVE-2026-3100
An improper certificate validation vulnerability was found i - CVE-2026-24936
An improper input validation vulnerability was found in ADM - CVE-2026-24935
An improper certificate validation vulnerability was found i
Same weakness: CWE-121
- CVE-2026-8258
Squirrel sqstdstring.cpp validate_format stack-based overflo - CVE-2026-8234
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based - CVE-2026-6665
PgBouncer buffer overflow in SCRAM - CVE-2026-41509
Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2026-6643
No comments yet