High severity · published Jul 25, 2025
CVE-2025-8136
TOTOLINK A702R HTTP POST Request formFilter buffer overflow
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
A vulnerability, which was classified as critical, was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected is an unknown function of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr leads to 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:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A7
A702R · TOTOLINK
4.0.0-B20230721.1521 · source: vendor
AF
A702r Firmware · Totolink
4.0.0-b20230721.1521 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8136
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8136
Exploit
https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formFilter.md
Permissions Required
https://vuldb.com/?ctiid.317532
Third Party Advisory
https://vuldb.com/?id.317532
Third Party Advisory
https://vuldb.com/?submit.620482
Product
https://www.totolink.net/
More from A702R
8.8
CVE-2025-9783
TOTOLINK A702R formParentControl sub_418030 buffer overflow
8.8
CVE-2025-9782
TOTOLINK A702R formOneKeyAccessButton sub_4466F8 buffer overflow
8.8
CVE-2025-9781
TOTOLINK A702R formFilter sub_4162DC buffer overflow
8.8
CVE-2025-9780
TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow
8.8
CVE-2025-9779
TOTOLINK A702R formFilter sub_4162DC buffer overflow