CVE-2025-6627— TOTOLINK A702R HTTP POST Request formIpv6Setup buffer overflow
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I. Basic Information for CVE-2025-6627
Vulnerability Information
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Vulnerability Title
TOTOLINK A702R HTTP POST Request formIpv6Setup buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical. This vulnerability affects unknown code of the file /boafrm/formIpv6Setup of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated 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，该漏洞源于文件/boafrm/formIpv6Setup对参数submit-url处理不当，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-2025-6627
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Same Patch Batch · TOTOLINK · 2025-06-25 · 5 CVEs total
| CVE-2025-6621 | 6.3 MEDIUM | TOTOLINK CA300-PoE ap.so QuickSetting os command injection |
| CVE-2025-6620 | 6.3 MEDIUM | TOTOLINK CA300-PoE upgrade.so setUpgradeUboot os command injection |
| CVE-2025-6619 | 6.3 MEDIUM | TOTOLINK CA300-PoE upgrade.so setUpgradeFW os command injection |
| CVE-2025-6618 | 6.3 MEDIUM | TOTOLINK CA300-PoE wps.so SetWLanApcliSettings os command injection |
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-2025-6627
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