CVE-2025-6302— TOTOLINK EX1200T cstecgi.cgi setStaticDhcpConfig stack-based overflow
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I. Basic Information for CVE-2025-6302
Vulnerability Information
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Vulnerability Title
TOTOLINK EX1200T cstecgi.cgi setStaticDhcpConfig stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Comment leads to stack-based 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
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
TOTOLINK EX1200T 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK EX1200T是中国吉翁电子（TOTOLINK）公司的一款 Wi-Fi 范围扩展器。 TOTOLINK EX1200T 4.1.2cu.5232_B20210713版本存在安全漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中函数setStaticDhcpConfig存在栈缓冲区溢出，可能导致远程攻击。
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-2025-6302
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Same Patch Batch · TOTOLINK · 2025-06-20 · 4 CVEs total
| CVE-2025-6337 | 8.8 HIGH | TOTOLINK A3002R/A3002RU HTTP POST Request formTmultiAP buffer overflow |
| CVE-2025-6336 | 8.8 HIGH | TOTOLINK EX1200T HTTP POST Request formTmultiAP buffer overflow |
| CVE-2025-6299 | 4.7 MEDIUM | TOTOLINK N150RT formWSC os command injection |
IV. Related Vulnerabilities
Same product: EX1200T
- CVE-2025-6568
TOTOLINK EX1200T HTTP POST Request formIpv6Setup buffer over - CVE-2025-6336
TOTOLINK EX1200T HTTP POST Request formTmultiAP buffer overf - CVE-2025-6162
TOTOLINK EX1200T HTTP POST Request formMultiAP buffer overfl - CVE-2025-6145
TOTOLINK EX1200T HTTP POST Request formSysLog buffer overflo - CVE-2025-6144
TOTOLINK EX1200T HTTP POST Request formSysCmd buffer overflo
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-121
- CVE-2026-8258
Squirrel sqstdstring.cpp validate_format stack-based overflo - CVE-2026-8234
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based - CVE-2026-6665
PgBouncer buffer overflow in SCRAM - CVE-2026-41509
Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2025-6302
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