High severity · published Jul 1, 2025
CVE-2025-6940
A vulnerability classified as critical was found in TOTOLINK A702R 4.0.0-B20230721.1521
8.8
CVSS
1%
EPSS
No
On KEV
Description
A vulnerability classified as critical was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected by this vulnerability is an unknown functionality of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be launched 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 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
A702r Firmware · Totolink
4.0.0-b20230721.1521 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-6940
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-6940
Exploit
https://github.com/awindog/cve/blob/main/688/27.md
Exploit
https://github.com/awindog/cve/blob/main/688/27.md#poc
Permissions Required
https://vuldb.com/?ctiid.314461
Third Party Advisory
https://vuldb.com/?id.314461
Third Party Advisory
https://vuldb.com/?submit.605861
Product
https://www.totolink.net/
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