CVE-2025-12611— Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-12611
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda AC21 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC21是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC21 16.03.08.16版本存在安全漏洞，该漏洞源于对文件/goform/SetPptpServerCfg中参数startIp的错误操作，可能导致缓冲区溢出。
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-2025-12611
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-12611
请登录查看更多情报信息。
- CVE-2025-12611 Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflowvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2025-12611
Same Patch Batch · Tenda · 2025-11-03 · 4 CVEs total
| CVE-2025-12618 | 8.8 HIGH | Tenda AC8 DatabaseIniSet buffer overflow |
| CVE-2025-12619 | 8.8 HIGH | Tenda A15 openNetworkGateway fromSetWirelessRepeat buffer overflow |
| CVE-2025-12622 | 8.8 HIGH | Tenda AC10 SysRunCmd formSysRunCmd buffer overflow |
IV. Related Vulnerabilities
Same product: AC21
- CVE-2026-4565
Tenda AC21 SetNetControlList formSetQosBand buffer overflow - CVE-2026-2148
Tenda AC21 Web Management DownloadFlash information disclosu - CVE-2026-2147
Tenda AC21 Web Management DownloadLog information disclosure - CVE-2026-1638
Tenda AC21 mDMZSetCfg command injection - CVE-2026-1637
Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based o
Same vendor: Tenda
- CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti - CVE-2026-8263
Tenda AC6 httpd WifiExtraSet fromSetWirelessRepeat os comman - CVE-2026-8259
Tenda AC6 httpd telnet os command injection - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
Same weakness: CWE-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2025-12611
No comments yet