CVE-2025-8136— TOTOLINK A702R HTTP POST Request formFilter buffer overflow
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I. Basic Information for CVE-2025-8136
Vulnerability Information
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Vulnerability Title
TOTOLINK A702R HTTP POST Request formFilter buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability, which was classified as critical, was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected is an unknown function of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may 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
TOTOLINK A702R 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A702r是中国吉翁电子（TOTOLINK）公司的一款路由器设备。 TOTOLINK A702R 4.0.0-B20230721.1521版本存在安全漏洞，该漏洞源于HTTP POST请求处理组件中文件/boafrm/formFilter对参数ip6addr的错误操作导致缓冲区溢出。
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-2025-8136
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Same Patch Batch · TOTOLINK · 2025-07-25 · 6 CVEs total
| CVE-2025-8137 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formIpQoS buffer overflow |
| CVE-2025-8138 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formOneKeyAccessButton buffer overflow |
| CVE-2025-8139 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formPortFw buffer overflow |
| CVE-2025-8140 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formWlanMultipleAP buffer overflow |
| CVE-2025-8170 | 8.8 HIGH | TOTOLINK T6 MQTT Packet meshSlaveDlfw tcpcheck_net buffer overflow |
IV. Related Vulnerabilities
Same product: A702R
- CVE-2025-9783
TOTOLINK A702R formParentControl sub_418030 buffer overflow - CVE-2025-9782
TOTOLINK A702R formOneKeyAccessButton sub_4466F8 buffer over - CVE-2025-9781
TOTOLINK A702R formFilter sub_4162DC buffer overflow - CVE-2025-9780
TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow - CVE-2025-9779
TOTOLINK A702R formFilter sub_4162DC buffer overflow
Same vendor: TOTOLINK
- CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-7823
Totolink A8000RU cstecgi.cgi setAppFilterCfg os command inje - CVE-2026-7750
Totolink N300RH POST Request cstecgi.cgi setMacFilterRules b - CVE-2026-7749
Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer - CVE-2026-7748
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer
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-2025-8136
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