CVE-2025-9783— TOTOLINK A702R formParentControl sub_418030 buffer overflow
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I. Basic Information for CVE-2025-9783
Vulnerability Information
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Vulnerability Title
TOTOLINK A702R formParentControl sub_418030 buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined in TOTOLINK A702R 4.0.0-B20211108.1423. This issue affects the function sub_418030 of the file /boafrm/formParentControl. Executing manipulation of the argument submit-url can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
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-B20211108.1423版本存在安全漏洞，该漏洞源于对文件/boafrm/formParentControl中参数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-2025-9783
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Same Patch Batch · TOTOLINK · 2025-09-01 · 5 CVEs total
| CVE-2025-9782 | 8.8 HIGH | TOTOLINK A702R formOneKeyAccessButton sub_4466F8 buffer overflow |
| CVE-2025-9781 | 8.8 HIGH | TOTOLINK A702R formFilter sub_4162DC buffer overflow |
| CVE-2025-9780 | 8.8 HIGH | TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow |
| CVE-2025-9779 | 8.8 HIGH | TOTOLINK A702R formFilter sub_4162DC buffer overflow |
IV. Related Vulnerabilities
Same product: A702R
- 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 - CVE-2025-8140
TOTOLINK A702R HTTP POST Request formWlanMultipleAP buffer o
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-2026-8137
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 - CVE-2026-7855
D-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflo
V. Comments for CVE-2025-9783
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