CVE-2025-8138— TOTOLINK A702R HTTP POST Request formOneKeyAccessButton buffer overflow
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I. Basic Information for CVE-2025-8138
Vulnerability Information
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Vulnerability Title
TOTOLINK A702R HTTP POST Request formOneKeyAccessButton buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical. Affected by this issue is some unknown functionality of the file /boafrm/formOneKeyAccessButton of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack may be launched 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/formOneKeyAccessButton对参数submit-url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-2025-8138
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Same Patch Batch · TOTOLINK · 2025-07-25 · 6 CVEs total
| CVE-2025-8136 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formFilter buffer overflow |
| CVE-2025-8137 | 8.8 HIGH | TOTOLINK A702R HTTP POST Request formIpQoS 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-2025-8138
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