High severity · published Jun 20, 2025
CVE-2025-6302
TOTOLINK EX1200T cstecgi.cgi setStaticDhcpConfig stack-based overflow
8.8
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EX
EX1200T · TOTOLINK
4.1.2cu.5232_B20210713 · source: vendor
EF
Ex1200t Firmware · Totolink
4.1.2cu.5232_b20210713 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6302
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6302
Exploit
https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2
Permissions Required
https://vuldb.com/?ctiid.313302
Third Party Advisory
https://vuldb.com/?id.313302
Third Party Advisory
https://vuldb.com/?submit.595473
Product
https://www.totolink.net/
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